The Rival



""How very fitting that Yugi is competing in the first duel of my tournament. It's only a matter of time before he and I face off against each other again. After all, he's my arch rival. The Sherlock Holmes to my Moriarty. The Kaneda to my Tetsuo. The Speed Racer to my Racer X. I could go on, but I won't.""

- Seto Kaiba, Yu-Gi-Oh!: The Abridged Series

The grim, volatile foe of the protagonist who, through a series of inexplicable events up to and including attempted murder, gains grudging respect for said hero/heroine (and may even save them) and goes from intolerable ass to tolerable ass. They usually never measure up in a crisis and ofttimes end up sacrificing their lives (Redemption Equals Death) so everybody else can have Character Development. Unless they're a Dark Magical Girl. Frequently a Foil for the hero, showing what he could have become. Usually begins the series with a leg up on The Hero.

If fate is unkind, they may be the Butt Monkey version, the Unknown Rival. If they start out as an Aloof Ally, a Heel Face Turn can be expected somewhere down the line. Occasionally a regular villain might go through a similar process and become a Friendly Enemy. Will probably lead to Foe Yay.

Often subject to an Embarrassing Rescue. Might turn evil. If the character in question is also a bit of a rebel, then expect some bad posture and a tendency to lean against things. Compare with the Arch Enemy, this trope taken up to the max, and The Lancer, with a similar personality but on the side of The Hero. Could one of the Opposed Mentors. See also Fandom Rivalry.

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 * Cereal mascots Count Chocula and Frankenberry have always been rivals - Depending on the Writer, their rivalry has ranged from friendly to ugly. Both often consider Boo Berry a rival too, but he's usually only interested in promoting his cereal.

Anime and Manga

 * Mazinger Z: Boss was The Rival from Kouji in the original series (albeit, as much as Kouji was concerned, he was un Unknown Rival). He was jealousy of Kouji because he was a better bike rider AND Sayaka had a crush on Kouji. The first thing he did when they met was picking a fight with him. However, as the plot and Character Development marched on, he slowly grew to respect him, and they became friends. Also, in many Super Robot Wars games Kouji is rivals with Asuka Langley Soryu. The two of them always but heads. It is amusing, since she would be more liable to antagonize Tetsuya (both of them are two prideful Ace Pilots -Broken Aces, actually- can not stand losing).
 * Great Mazinger: Boss was The Rival from Tetsuya for a while. Boss could NOT stand Tetsuya, but Tetsuya only found him annoying, although he certainly did not care for Boss stalking Jun and showering her with unwanted attention. Tetsuya regarded Kouji like his real rival, and when Kouji returned, they got a very heated relationship. Kouji wanted to be friends or at least partners, but Tetsuya got very jealous and paranoid. He was an orphan kid with a huge Inferiority Superiority Complex, plenty abandonment issues and no self-esteem whatsoever, and he regarded Kouji like a threat would steal his father from him, take away his reason to exist, and replace him. Geez, he even accused Jun from wanting replacing him with Kouji (in spite of Jun barely knew Kouji and she had spent the whole series trying Tetsuya noticed her). He was ALWAYS arguing, bickering and fighting with Kouji, wether they were discussing tactics or battling the enemy.
 * UFO Robo Grendizer: Minister Zuril saw The Hero Duke fleed like his rival, since Nonetheless, Duke regarded him like another Vegan commander he had to defeat.
 * Gary (Motherfucking) Oak is Ash's Rival in Pokémon. In the anime he kept the rivalry until the end of the Johto saga, when he was defeated and pursued a different career. In the next saga we are introduced to Drew and Harley, which become May's Rivals.
 * In Diamond and Pearl games, you have a rival who is also your childhood friend and more of a friendly rival.
 * In fact, in every Pokémon RPG, the main hero/heroine has a Rival since the start of the game; in the later ones they even have two.
 * Usually you can name your rival. "Oh, I remember now! His name is DOUCHE!"
 * The Hoenn arc was the only arc Ash himself went without a direct rival. As of D/P he's now got Paul, who happens to be at least a half-dozen shades darker than Gary ever was, to worry about, and the new guy is not only efficient in subduing Ash, but also darwinistically cruel; any Pokemon he deems weak is dropped or handed off without a second thought.
 * Incidentally, Paul's actions are frequently compared to the modus operandi for most people playing the game.
 * Gary has since returned on a couple of occasions to help Ash and company, and is more of a Friendly Enemy than anything else. Similarly, in Hoenn Ash did pick up a new rival in Morrison, although again they became Enemies right from the start.
 * Ash later met Barry, who is a borderline ditz. Nevertheless, their rivalry is fairly friendly and Barry became a fan favorite. It also helps that he Lampshades most of the tropes/traditions in the show.
 * In Best Wishes, Ash's new rival is a reserved amateur photographer and beginning trainer named Trip. His first battle with Ash Trip himself leans more on Gary's side of the Jerkass scale, if only because he dislikes Ash's energetic personality. This is later subverted though as he's revealed to not be a jerk at all and is more annoyed with Ash appearing at the most crucial moments then anything.
 * Bianca has been confirmed as another Rival this region, and is every much a lovable ditz as Barry.
 * May and Dawn both have their own Rivals, as previously mentioned; though as far as personality goes, May has Harley and Dawn has Ursula and—shockingly enough -- Jessie.
 * The manga have various, to name a few: Pokémon Special has the game rivalries intact, mixed with important NPCs as rivals. Pokémon Golden Boys has Black, who is a counterpart to Silver, and arguably Chris. Pocket Monsters has Kai, who is a counterpart to Blue. Pokemon Diamond And Pearl Adventure has Jun, a counterpart to Damion.
 * James and Jesse tend to shift between Rivals and enemies to Ash and company frequently. Also, pretty much any other named member of Team Rocket is this to them, most often the case with Butch and Cassidy.
 * Ryoga from Ranma ½.
 * Also from Ranma, one-time manga character Asuka Saginomiya, "The White Lily", is Kodachi Kuno's rival. She pretty much IS Kodachi, just in a different color. She actually manages to top Kodachi in terms of hamming it up by carrying around a large picture frame with lilies tied to her back so she can pose.
 * Ren Tao to Yoh Asakura from Shaman King.
 * Half the cast of Dragonball Z, Vegeta being the most prominent example, with Yamcha being the first.
 * Ichigo Kurosaki has garnered a grand total of six rivals - Uryu Ishida (though they never fought directly), Renji Abarai, Byakuya Kuchiki, Grimmjow Jaegerjaquez (he took it more personally than Ichigo), Ulquiorra Cifer and Ivan Azgiaro (a subversion; he's killed early on).
 * In Black Lagoon, Shenhua is Revy's rival.
 * Takahashi Keisuke (specifically, because he best fits the "intolerable ass" requirement), and at least half the cast of Initial D.
 * Syaoran Li in Cardcaptor Sakura.
 * Fate in Magical Girl Lyrical Nanoha, throughout the first season. The second season featured one Wolkenritter to match up against each of the main combatants on the cast; Signum vs. Fate, Vita vs. Nanoha, and Zafila vs. Arf. Signum and Zafila were more like worthy opponents to their respective counterparts, but Vita plays the trope straight.
 * Kai of Beyblade gravitates between The Rival and The Lancer.
 * Hakuoh and Kokujo from Duel Masters, the former doing a total 180 in every aspect after Shobu beats him, while the latter never really stops being the rival, softening only the slightest bit.
 * Sasuke of Naruto floats in and out of this role. Kishimoto actually stated he read up on the archetype in various manga when making him.
 * Sasuke's entire creation was based on the fact that Kishimoto's editor said that Naruto needed a rival. Guess the fangirls should be grateful for this trope.
 * Then there's Sakura and Ino, though their rivalry has toned down a lot in Shippuden.
 * Yu-Gi-Oh! examples:
 * Seto Kaiba from the original anime practically defines The Rival.
 * Tristan and Duke become this in later seasons, mostly due to each of them trying to one up the other to impress Serenity. Naturally, Joey really isn't happy about it...
 * Yu-Gi-Oh! GX! has Jun Manjoume, a partial Expy of Kaiba, who serves as Judai's rival. Later, he gains a second rival (also a partial Expy of Kaiba, though utilizing different aspects of his personality) in Edo Phoenix. And for a few episodes Hell Kaiser Ryo could also count as a rival to both Jaden and Syrus. He's also a Kaiba Expy, even using what is at its core a "Cyber" version of Kaiba's deck.
 * Johan was introduced as a third, friendlier rival to Judai later, with Judai's Winged Kuriboh and Johan's Crystal Beast-Ruby Carbuncle forming a rivalry of their own.
 * Yu-Gi-Oh! 5D's! introduced Jack Atlas as a rival to Yusei, and another Expy of Kaiba down to the white Badass Longcoat. However, he underwent Character Development. and come Season Two he's part of the Five-Man Band that makes up the heroes.
 * Yu-Gi-Oh! Zexal introduced Kaito as Yuma's rival, although from Kaito's point of view he's more of a rival to Astral.
 * Konjiki no Gash Bell!! has a number of these, most notably Brago, who is called "the demon to beat" by Kiyomaro.
 * They also have Bari who decisively beat them but spared their book. There was also Shinichi/Eshros, who fought the pair into a corner and would have won. Fortunately, Shinichi just wanted to test his strength against Kiyo and Zatch, and retrned their book.
 * Koga in Inuyasha.
 * Char Aznable from Mobile Suit Gundam was so popular and influential that pretty much any rival in the Gundam franchise is an Expy of him.
 * From Gundam Seed Destiny Kira Yamato and Shinn Asuka are rivals to each other.
 * Although this case in interesting in that neither of them know anything about each other nor each others names. They meet once but say very little and don't know who the other is. In fact once Shinn upgrades to Destiny Kira doesn't even know he's the same pilot he's fought before. So they are effectively faceless enemies to each other for their entire rivalry.
 * Athrun Zala is Kira's rival in the orginal Gundam Seed and probably his main rival overall.
 * In Mobile Suit Gundam 00 Graham Aker is the rival to Setsuna F. Seiei.
 * Andy from Cowboy Bebop. Mind you, he wasn't so much Spike's 'rival' as 'someone who resembled him far too much' and just happened to be chasing the same bounty.
 * Akira in Hikaru no Go: The series premise makes turning evil and/or the need for a rescue, embarassing or otherwise, highly unlikely. Mass quantities of Foe Yay are used, seemingly to make up for it.
 * Suzaku Kururugi in Code Geass.
 * But definitely not Rivalz.
 * A little more complicated than that. Suzaku plays friendly enemies with Lelouch, due to their friendship but drastically opposed viewpoints.
 * On the other hand, Kallen and Suzaku more easily fit the mould of the rival, with both being exceptional pilots, and the same ultimate goal.
 * In The Prince of Tennis both Sanada and Atobe start out as formidable, intimidating opponents. Along the way they earn the main team's respect to a degree, and in the last match, they help the main character regain his memories so he can face his last opponent (who happens to be Sanada's captain).
 * Negi Springfield to Kotaro Inugami in Mahou Sensei Negima, though Kotaro eventually joined the Nakama after a Heel Face Turn. They become friends. A Similar rivalry exists between Negi's Father Nagi and Jack Rakan, who again later joined that Nakama. Currently, Fate Averruncus plays this to Negi as well as being his Arch Enemy..
 * Suzu from Peacemaker Kurogane.
 * One Piece, one of the current biggest anime around, and had seemed to avoided a rival for several arcs, with the exceptions for the Big Bad who wants to be the next King of the Pirates, (though Buggy the Clown may count) but come chapter 498, Luffy gets not one, but eight different rivals, in a group called, 'The Eleven Supernovas' which Luffy and Zoro are a part of. So far Straw Hat Luffy met and got a rivalry with Eustass Kid, and Trafalgar Law.
 * Though, due to Luffy's generally friendly attitude towards the people he meets, these aren't yet very active rivalries. In particular, Luffy and Law's interactions have been beneficial for both of them,
 * Soul Eater has Ox claiming himself Maka's rival (only academically speaking), and Black Star sees himself as Kid's. Gopher appears to see Maka as his rival for Noah's attention, much to the girl's bewilderment upon first meeting the guy out to kill her with extreme prejudice. He takes the same attitude towards Kid who, like with Black Star, is simply not bothered.
 * Ultra Magnus to Optimus Prime in Transformers: Robots in Disguise, as he feels he should have gotten the Matrix. He never turns evil, despite Megatron's best efforts.
 * In Future GPX Cyber Formula, Hayato has rivals throughout the series, starting from Naoki Shinjyo, and continuing on with Randoll, Osamu (as Knight Schumacher in 11) and finally Bleed Kaga.
 * The side characters: Gudelhian and Heinel, and Leon takes this role to Henri (both of these rivals are in the same team). Bootsvorz was the rival to Osamu in their F1 days.
 * In Eyeshield 21, Seijuro Shin fills this role for Sena. Haruto Sakuraba is also this for Monta. There are several other Rivals present throughout the series, too. Unusually for this trope, there is (usually) no antagonism between them. While they're all determined to surpass each other, there is only mutual respect between (most of) them.
 * Light and L are classic examples, foils with similar traits, differing ideals and near-opposite appearances to offset their near-identical approaches to problems. They suffer from a serious case of Rivals Team Up under odd circumstances as well, though it both was and wasn't true teamwork.
 * Gajeel and Erza from Fairy Tail could both be considered this to Natsu.
 * Gray was as extreme an example of a rival to Natsu as it could be in the early Fairy Tail days, but Gajeel seems to have taken his role starting with the Fighting Festival arc.
 * Viral, as you might guess from his name, serves this role towards Kamina and Simon in Tengen Toppa Gurren Lagann.
 * Viral, as you might guess from his name, serves this role towards Kamina and Simon in Tengen Toppa Gurren Lagann.

Comic Books
"I could say we wuz 'olding back so's we could ''study The Grimlug's aerial defences under real-time kombat conditions-- I could say that, but I'd be lyin'. Fact is, we just wanted to watch them smug gitz get blown to pieces. 'course, after that it wuz still gonna be our turn next..."
 * Hamfistedly lampshaded by Rival-san Lendo of the Rival Ninja Corporation in the manga-inspired American comic book Ninja High School.
 * The Thing is generally portrayed as this when fighting Hulk, and the same can be said of Captain Marvel and Superman.
 * Namor the Submariner and the Hulk were both mainly used as obstacles for heroes in early comics, which may be why writers decided to pit them against each other. Hulk hates Namor's rudeness and arrogance and Namor hates Hulk's childish behavior and stupidity. The rivalry remained even when they were on the same team.
 * Admittedly thanks to their time on the Defenders they act more like squabbling siblings as opposed to actually trying to kill each other.
 * Wolverine is also seen as Hulk's rival. That's probably because Wolverine debuted in Hulk's book.
 * Hulk has several rivals; Thor qualifies and on the villainous side, Hulk has a long running rivalry with the Juggernaut.
 * One of the hallmarks of Superman/Batman comic book series is that the titular characters are ideological rivals and the reader is treated to their differing opinions of the same event. For example, where Superman sees the discovery of Kara as a love story (finding a long lost family member) Batman believes finding another Kryptonian is a detective story (is she really the noble person she is claiming to be, or is she hiding something?). It should be noted that while both have very different opinions, they generally respect each others beliefs due to their superficially different, but surprisingly similar origins.
 * Ashley Swift is The Rival to Jennifer Mays in The Maze Agency. Jen's success is all the more galling for Ashley as Jen used to work for her.
 * The eponymous Katy Keene had Gloria and Lucki.
 * Chili is this to Millie the Model.
 * Book 3 of Les Légendaires introduce a group of hero named the Fabulous (consisting in asian-like swordman Michi-Gan, Comanshawas warrior Shaki and Michi-Gan's foster daughter Toopie) who started out as this to the Legendaries. Notably, while the Fabulous displayed the typical jerkass rival attitude toward the Legendaries at the beginning, it was arguably justified: not only were the Legendaries at this point still blamed by everyone for the Jovenia Incident, but the Fabulous also reproached the Legendaries to have disbanded for two years in reaction to the blame, thus not being there when Alysia needed them (Danael later admits they were right on this point). On the other hand, the Fabulous placing themselves as replacement to the Legendaries while calling them outdated and constantly criticizing them didn't really made them easy to sympathise with at first. After the two teams were forced to collaborate, they eventually developped mutual respect, and are in good relationship in the following books.
 * Deff Skwadron with Karnage Skwadron and Kannibal Skwadron. They all work for Boss Badthug, but...


 * Kitty Pryde and Emma Frost. Kitty was initially far less willing to forgive Emma's crimes and reluctant to believe her Heel Face Turn was authentic. In fact, this is why Emma insisted Kitty be part of the X-Men, as she knew that if she ever did regress to her old ways, Kitty would be the first to notice it. Eventually they mellowed to a Friendly Rivalry.

Film

 * King Brian to Darby in Darby O Gill and The Little People.

Literature

 * In the Backstory of James Swallow's Warhammer 40,000 Deus Encarmine, Rafen and Sachiel were rivals. Lends an edge to their clashes, and their Foil status.
 * Sammael of The Wheel of Time turned to the dark side because he was jealous of his rival (the former incarnation of the protagonist)
 * In Aaron Allston's Galatea in 2-D, Kevin's attitude toward Roger and Donna.
 * In Robert E. Howard's "The Scarlet Citadel," Conan the Barbarian rescues Pelias, rival to Evil Sorcerer Tsotha-lanti.
 * There are a few in the Warrior Cats series:
 * Longtail and Dustpelt served as rivals to Firestar in the first arc. In the end, Firestar and Dustpelt came to respect each other, while Longtail became a close ally of Firestar.
 * In the beginning of The New Prophecy, Crowfeather acted like a Jerkass and was a rival of sorts to Brambleclaw, but they quickly grew close on their journey together.
 * Breezepelt served as the rival of both Jayfeather and Lionblaze in both Power of Three and Omen of the Stars''. Unlike the others, he became a Rival Turned Evil.

Live Action TV

 * Crais from Farscape.
 * Lex from The Tribe is a rival to Bray, as well as most other males on the show with any authority. He's also a thug and a petty criminal who thinks he's much more of a Magnificent Bastard than he really is.
 * Turk had a rival in Bonnie during the early seasons of Scrubs
 * So Random and Mackenzie Falls are rival television programs on Sonny With a Chance.
 * Bania in Seinfeld.
 * Carter Baizen to Chuck Bass on Gossip Girl.
 * Sharon Raydor shows up as this to Brenda in Season 5 of The Closer, possibly because Commander Taylor is now something of a Lancer. After working together (quite well) to solve a case in the most recent season finale, they agree that they "simply don't like each other." This is, of course, going to turn out to be a big fat lie.
 * Many of the secondary Heisei Kamen Rider play this role at first, then eventually become an ally or a true foe.
 * A considerably more benign version of this trope is Prince Arthur and Lancelot from Merlin. Both of them respect the other, but both are painfully aware of their mutual feelings for Guinevere.
 * Bimpe from Tinsel is Telema Duke's rival, both in the industry and for Soji. Kwame is Soji's rival. Brenda Mensah is Fred Ade-Williams's rival.
 * Power Rangers examples:
 * Eric to Wes in Power Rangers Time Force. Plus For Rivals Team Up and Eric becoming The Lancer
 * Deker to Jayden in Power Rangers Samurai counts as well.
 * Jason and Goldar...accept no substitutes.
 * The Poorly-Disguised Pilot of Masked Rider suggested a rivalry exists between Lord Zedd and Count Count Dregon although it was never expanded upon.
 * Lord Zedd was this to Master Vile, Rita's father, overlapping with Obnoxious In-Laws Yep, evil galactic conquerers have Obnoxious In-Laws.
 * Used as backstory in Power Rangers Zeo. Supposedly King Mondo has a hated rival named King Aradon. This enemy never appears in the series, but he is the father of Princess Archerina, who Mondo's eldest son - Prince Gasket - fell in love with. Gasket and Archerina made their presence known during the short time where Mondo was believed dead.
 * Buffy the Vampire Slayer:
 * Kendra was this to Buffy. Despite both being Slayers, their techniques and methods made them polar opposites (simply put, Buffy thought Kendra was too brutal, Kendra thought Buffy was too soft) but they became Fire-Forged Friends after a while.
 * Spike claims he and Dracula were this until the latter sold the rights to his life story (presumably to Bram Stoker), became famous, and grew apart from his old "friends". As might be expected, Spike doesn't like him much.

Radio
"Jack Benny: You haven't seen the end of me, Allen! Fred Allen: It won't be long now!"
 * A light-hearted comedy example can be found in the long-running "feud" between comedians Jack Benny and Fred Allen. The two would frequently appear on each others shows to harass one another and trade barbs, leading to a Crowning Moment of Funny when Jack Benny, who had taken an assumed name to appear on Allen's new game show, finds out his "big prize" is to have his pants pressed—right then and there.

Tabletop Games

 * In Dungeons and Dragons, many folk believe an Elementalist wizard or being with Elemental Powers will always be a rival (at least) of a wizard of being representing the opposite element, as Air opposes Earth and Water opposes Fire. These folk are wrong, as such wizards and beings usually consider those representing all three of the other elements to be hated rivals. In fact, most magical researchers believe that the creators of the staff of the elements - an epic-level magical item that could only have been built by four powerful archmages representing all four elements - were likely siblings, or had some other family bond that prevented such a rivalry.
 * The lore of the Yu-Gi-Oh! card game from Master Guide 4) states that "Slacker Magician" and "Alchemic Magician" are both friends and rivals, which is confirmed on the art of "Xyz Tribalrivals".
 * Later cards - "Arrivalrivals", "Staring Contest" and "Get Out!" - suggest that "Akashic Magician" is a rival to both of them.

Toys

 * From Bionicle; In the early days of the Toa Mata, de facto leader Tahu and future second-in-command Kopaka bickered a lot. But, thanks to character development, they have forged a strong bond which is both professional and brotherly.

Video Games

 * Wolf from Star Fox, to Fox McCloud.
 * There are many rivalries from the Advance Wars series between COs (Commanding Officers). Eagle and Andy (one of the missions where you fight Eagle is even named "Rivals!"), Sami and Sonja and possibly Grit and Max from the first game, Adder and Sensei and Lash and Sonja from the second game, and possibly Hawke and Candy/Kindle from the third. Days of Ruin/Dark Conflict doesn't have rivalries as such; everybody generally just hates each other, except for the NRA and IDS (the two main antagonist armies of the game) who get along nicely.
 * Knuckles from the Sonic the Hedgehog games is often billed as Sonic's "friendly rival" - in the Archie comics, the "friendly" part was often ignored, as many of the two's conversations simply wound up dissolving into fistfights. This lasted until the "Endgame" arc, after which the two became steady friends.
 * Another example from the Archie comic: Geoffrey St. John, who competed with Sonic on missions and for Sally's heart. To a lesser extent (a much, much lesser extent), Antoine also originally fit the bill.
 * Recently,.
 * Shadow plays this a lot straighter.
 * Eggman started out as an enemy of Sonic's, but became this due to Villain Decay.
 * Uh, Eggman's still Sonic's Arch Enemy, he's just not as much a threat as he used to be (in the games anyway; the comic version seems to be making a comeback)
 * Shadow and |Silver to Modern Sonic, and Metal Sonic to Classic Sonic, as seen in Sonic Generations.
 * In Phoenix Wright: Ace Attorney, Miles Edgeworth was a childhood friend of Phoenix who was his rival in the first game, but eventually became his friend again. Phoenix himself says that one of his primary motivations for becoming a lawyer was so he could face Edgeworth in court.
 * Franziska von Karma steps up to the bench for the second game. She violently wants to defeat Phoenix because
 * She also takes up this position in Investigations, specifically in
 * And for the third game we have Godot who really hates Phoenix's guts and won't explain why.
 * Street Fighter
 * Ryu and Ken have been friendly rivals to each other from the very beginning of the series. Later, Sakura and Karin came along as rivals to one another.
 * Later games have introduced different rivals to each of these characters - Alex for Ryu in III, and Rufus for Ken in IV.
 * And Sagat plays the role of rival to Ryu straighter than Ken does.
 * Not really, there's too much enmity between Ryu and Sagat. They're more Archenemies then mere Rivals.
 * Despite being The Dragon in the early Street Figther games, Sagat is a an honorable man and not a bad guy at all (unlike Vega and Balrog, who were Bison's subordinates.) He chases Ryu because he wants a rematch between warriors and definitely sees Ryu as a rival.
 * Later on in the series he does a bit of a one-eighty and goes from being obsessed with revenge to focused on being a better fighter. Gets over his Ryu-hate too. He's like a less "blows up stadiums full of people to piss off Kakarot" version of Vegeta.
 * And then there's Ryu and his Noble Demon/Evil Counterpart Akuma.
 * Chun Li towards Morrigan in Capcom Versus Whatever titles, possibly due to both characters' vanity and reputation of being the World's Most Beautiful Woman in their respective titles.
 * Mortal Kombat has its own big rivalries as well:
 * The most famous one is between the series' two resident Ninjas, Sub-Zero and Scorpion.
 * Sonya Blade has a major one against Kano, who she's sought to bring to justice. She also has a mutual rivalry with Frost, but neither character has ever explained why.
 * Kitana has one against her Evil Twin Mileena, while Jade has one against Tanya (who betrayed the royal family).
 * And as for friendly rivalries, there's Liu Kang and his fellow Shaolin Kung Lao.
 * Wario is Mario's rival, though its doubtful whether Mario has noticed. Wario's actual rival is probably Captain Syrup, a villain in some games that he's starred in, whose greed is said to be even greater than his.
 * Waluigi is also supposed to be Luigi's rival. It's even less likely that Luigi has noticed. In some games (like Mario Strikers and Mario Party 4) he's also either this or a Villainous Crush (or both) to Daisy. If anything, Daisy seems to go out of her way to put him down.
 * Also, Wendy P. Koopa's Trophy in Super Smash Bros 64 claims All There in the Manual she considers herself a Rival of both Peach and Daisy as rivals, but its doubtful either of them have ntoiced.
 * Ky Kiske to Sol Badguy in Guilty Gear.
 * Also Ragna the Bloodedge and Jin Kisaragi in BlazBlue.
 * Seifer to Squall in Final Fantasy VIII.
 * Sora and Riku (At least in the beginning) in Kingdom Hearts.
 * Mana Khemia: Alchemists of Al-Revis has Roxis to the main character Vayne. So much so, that on one occasion he even thinks of competing against Vayne in a marathon, even though they're on the same team.
 * Date Masamune and Sanada Yukimura from the Sengoku Basara series play this role to each other, since they share the main character slot. Masamune probably fits the description better overall.
 * Also Chosokabe Motochika and Mori Motonari to one another, though it's only Motochika who sees it like that.
 * And Samurai Heroes gives us Tokugawa Ieyasu and his rival Ishida Mitsunari.
 * Jak gains a racing rival/ArchEnemy in Erol in the second game. Daxter also gains a Vitriolic Best Buds, a talking monkaw named Pecker.
 * In the Tokimeki Memorial series, there's two types of rivalries:
 * Between High Schools :
 * Kirameki High, the High School of Tokimeki Memorial 1, has a sworn rivalry with Suega High, a neighbour High School, especially in sports domains (Suega's Soccer Club is known as one of the strongest in the National Inter High Circuit, and the opponent to reach and defeat for Kirameki's Soccer Club, in Gaiden Game Nijiiro no Seishun ; it's also one of the last and strongest opponents in other sports clubs' friendly matches, in the original game) ; this doesn't prevent the two to cooperate and doing a common music concert in Tokimeki Memorial Pocket.
 * Kirameki High also has a sort of rivalry with Hibikino High, the High School of Tokimeki Memorial 2, but it is a much more friendlier one than the one with Suega High, as students from both High Schools interact a lot and often come to the other High School and their neighbouring districts.
 * Between individual characters :
 * Tokimeki Memorial 1 has Yumi and Saki, for the Unknown Rival variety (Yumi considers Saki her rival for the protagonist's heart as soon as Saki shares a bento with him, but Saki doesn't notice Yumi's jealousy ;
 * Tokimeki Memorial 2 has Mei and Homura, for the Arch Enemy variety, as well as Junichiro and Takumi towards the protagonist, if they're in love with the same target girl as the protagonist, for the straight version of the trope.
 * In Mitsumete Knight, Hanna and Linda are sworn rivals who don't get along and can go into Volleying Insults, but they hold each other in high regards, Hanna admitting Linda is a faster runner than her, and Linda going for the trouble of going to Dolphan Academy to discover her, and deep down admiring her perseverance,.
 * There's also the Asian and Johan, if the Asian goes for Sophia's heart, although the rivalry is anything but friendly, as Johan is not pleased by this.
 * And, in the game's backstory, there's.
 * As stated above, you get a rival in every Pokémon game. In the main series, as of HGSS, you have Green/Blue, Silver, Brendan/May Wally and Pearl/Barry.
 * Pokémon Black and White give you Bianca and Cheren as your rivals. You read that right - you have two rivals this time around. However, Bianca's role is a little more comparable to Brendan/May, whereas Cheren is the true rival. In Pokémon Black 2 and White 2, Hugh fills a similar role.
 * Pokémon X and Y, the true Rival is Calem or Serena (same deal as Brandon and May, the unused playable character) while Shauna, Tierno, and Trevor act as secondary Rivals, though in this case, all are more frequently allies.
 * Pokémon Sun and Moon has Hau as the friendly Rival and Gladion as the darker type, while in Pokémon Sword and Shield, the same roles are filled by Hop and Bede, respectively, adding Marnie as a third who falls somewhere in-between. The Isle of Armor DLC adds the flamboyant performers Klara or Avery, depending on the game you're playing. Both are, in fact, rivals and Gym Leaders.
 * Barring any future DLCs, Pokémon Scarlet and Violet only has one Rival for now, Nemona. President of the Academy's school council and the protagonist's mentor and (possibly) girlfriend. Potentially the strongest Rival, she is the only Rival other than Blue to be the League Champion, but unlike Blue, has that title at the start of the game. Being the player's mentor, she in under self-imposed handicap through much of the game, only using Pokemon that match the (approximate) levels of yours, and unlike most primary Rivals, selects the Starter that your Starter has Type Advantage against.
 * Yanagi and Hiroki have this relationship in Canvas 2 after reconciling.
 * In the House of the Dead franchise, James Taylor seems to share a friendly rivalry with Thomas Rogan, hinted by the vs CPU mode in the Typing of the Dead and James' comment in the final score screen in the House of the Dead 4.
 * Ulysses of Fallout: New Vegas is heavily implied to be this for The Courier, with them eventually having a final showdown in Lonesome Road. He's also a case of Unknown Rival in that the Courier has never heard of him prior to the DLC.
 * Devlin of Vanguard Bandits is almost always butting heads with the hero Bastion and it is difficult to get him to like you. Unfortunately, you will need to get him to like you.
 * Kyo Kusanagi and Iori Yagami from King of Fighters. Their rivalry has rooted since the times of their ancestor. Iori is COMPLETELY OBSESSED in beating the crap out of Kyo, and while Kyo is usually dismissive, he wouldn't miss out a good brawl with Iori.
 * Riki is Kunio-Kun's rival. In some games, such as Renegade or Crash N The Boys Street Challenge, he serves as a boss fight or foe.
 * Touhou has Marisa versus Reimu, and Marisa is/was even a stereotypical enemy-turned-rival. There's also the considerably more violent Mokou versus Kaguya. Recently, Reimu has gained another rival that is Sanae.
 * Protagonist version, Anna Hottenmeyer from Mr. Driller.
 * Asura's Wrath: Yasha is Asura's main rival in the story mode.
 * Asura's Wrath: Yasha is Asura's main rival in the story mode.

Web Comics

 * Captain Gamer's nemesis (Czar Gamer) regularly swings from friendly rival to bitter enemy and back again.
 * In Sluggy Freelance, Lord Horribus considered himself to be Torg's rival, though Torg didn't take this too seriously for much of the series.
 * Bun-Bun also has a Rival in the form of Santa Claus, who tries to kill him each Christmas. An odd version of the trope, since Bun-Bun is a Heroic Sociopath, and Santa is generally portrayed as a decent (if slightly obsessed) guy just trying to see that justice is done.
 * Lance has a rival in Gold Coin Comics named Blake, who has traits from Seifer in FFVIII.
 * Sixx and Butterfly, and to an extent Ginger and Laura in Collar 6.

Web Original

 * Dr. Bright and Dr. Clef from the SCP Foundation. Exactly why they first became rivals has never been specified, but supposedly, it involved an altercation between them in the staff cafeteria that resulted in a dozen casualties, several Containment Breaches, and a glob of mashed potatoes stuck to the ceiling that has since defied all attempts by the custodial staff to remove. Since then, the two are not allowed to be in the same room together without a “responsible” administrator supervising, and since that rule was made, no administrator has proven “responsible” enough to prevent a fight between them.

Western Animation

 * If any cartoon was defined by a rivalry, it was Tom and Jerry. While Tom is usually the aggressor, he seems far more obsessed with winning than hurting Jerry, while Jerry seems far more content with humiliating and outwitting his foe.
 * Looney Tunes was often defined by its rivalries too:
 * Take a Red Oni, Blue Oni pairing and make them rivals, and you've got Bugs Bunny and Elmer Fudd's conflict down perfectly. The yearn - possibly obsession - the serious-minded Elmer has over nabbing the free-spirited Bugs has spanned over seven decades and is still going strong. And it seems in all that time, Elmer never learns to see through Bugs'  lame disguises.
 * Daffy Duck is a rival to Bugs in a different way. An egotist to the core, Bugs is the Always Someone Better whom Daffy can never seem to best.
 * Sylvester to Tweety. At first, it seems like a predator-prey thing, but like the case with Tom and Jerry, this has become a personal obsession for Sylvester. Why else would he be so dead-set on catching one little bird? In fact, one cartoon ends with him deciding to fold and go to a restaurant for spaghetti, but this attempt to quit didn't last.
 * Dear lord, the Roadrunner to Wild E. Coyote. No matter how many times his ill-conceived plans to catch the speedy bird fail, often with himself getting hurt in the process, Wile E is certain to be back on his feet soon with a new Acme product and a renewed drive to do so. Sometimes a viewer can't help but admire such determination.
 * Craig Tucker and his friends are this to the main four boys in South Park
 * Mandark is Dexter's rival in Dexter's Laboratory. The two clash a lot though Mandark does have a serious thing for Dexter's sister Dee Dee.
 * In SpongeBob SquarePants, Squilliam has been Squidward's rival since highschool band class.
 * In Chowder, Endive has been Mung Daal's rival in the catering business for years. Panini should be Chowder's rival, but she chooses to be his Yandere Stalker with a Crush instead.
 * Apparently Panini was originally supposed to be just that when the creator pitched the series. He decided to retool her when it got picked up.
 * In the multi-part "World's Finest" episode of Superman: The Animated Series, Mercy and Harley developed a rivalry pretty quickly, despite Lex Luthor and the Joker being uneasy allies. Mercy got the brunt of most physical confrontations between them and was injured badly, but got the last laugh on Harley while watching her hauled away by the police.
 * On American Dad, Roger invokes this trope in a horse race when he tells one of the other jockeys he got it on with his wife. Roger did this deliberately because he thought the race would be more interested if he had a rival to compete against.
 * Jimmy Neutron and Cindy Vortex, NON-STOP, in "Jimmy Neutron: Boy Genius" and "The Adventures of Jimmy Neutron: Boy Genius". She does however get a "Relationship Upgrade" from his rival and enemy in the first season/movie to his rival-friend in the second season to his girlfriend in the third season.
 * Randall Boggs from Monsters, Inc. is not only the rival to James P. "Sulley" Sullivan, but is also  as well.
 * In The Mighty B!, Bessie Higgenbottom's rival is Anton St. Germain.
 * The Little Man from The Pink Panther (both oringinal and 1993 remake) and Pink Panther and Pals.
 * Nester, his mom and Paddy in Scaredy Squirrel.
 * Principal Pixiefrog from from My Gym Partner's a Monkey frequently sometimes towards Adam.
 * Kyle and Salty Mike from Squirrle Boy
 * Cheif and Lok from Tak and the Power of Juju
 * Gordie, Kendal and Ronaldo from Kick Buttowski
 * Nova(Sam Alexander) to Spider-Man in the Ultimate Spider-Man animated series.
 * In the Harley Quinn cartoon, Harmless Villain Kite Man has a rather nasty rivalry with fellow Harmless Villain Condiment King.
 * In Star Trek: Lower Decks, the Delta Shift (the ship's equivalent of the night shift) seems to be a Sitcom Arch Nemesis to the Beta Shift (the main cast) although the episode "Terminal Provocations" seems to give them both Shifts a Not So Different realization.
 * Black Canary and Huntress in Justice League Unlimited. This is best expressed in "Grudge Match" where several of the League's female members have become victims of a brainwashing device that makes them fight each other. Huntress manages to free Canary from hers, but that doesn't stop Canary from belting her one last time.
 * Even in My Little Pony: Friendship Is Magic there seems to be no magic strong enough to convince some rivalries to end;
 * Applejack and Rainbow Dash are undoubtedly the biggest example, so much that if they weren't the biggest example, they’d demand a competition with whoever was to prove otherwise. More than likely, that would bring them into conflict with Twilight Sparkle and Trixie, another rivalry that spanned the series, mostly because Twilight is the one who refuses to let it go!
 * The rivalry between Applejack and Rainbow Dash even extends into  My Little Pony: Equestria Girls
 * Feather Bangs and Big Mac, of the love triangle type, the object of affection being Sugar Belle.
 * Rainbow Dash and Lightning Dust (started out as friends, became rivals over who was better at flying)
 * The Hooffields and the McColts If the name doesn’t make it obvious, this was a nasty family rivalry that lasted generations, until Twilight and Fluttershy made them realize how stupid and petty they were being. Even so, when they did make peace, one of the faction leaders got one more crack at the other by boasting they were the first to admit to being wrong, with the other replying that he was the first to promise not to start fighting again!
 * Apples and Pears. This may have been an Ascended Meme that started with fan art about Applejack (whose favorite food is, as her name suggests, apples) not liking pears. Nonetheless, the feud between the farms owned by Granny Smith and Grand Pear almost got as bad as the aforementioned feud between the Hooffields and the McColts after Bright Mac and Pear Butter fell in love. They ended better off than Romeo and Juliet, but sadly, the bad blood between their families wasn’t resolved.
 * The Apple Family and Flim & Flam. Yeah, the Apples have more than one rival, lucky them. Flim & Flam are two Snake Oil Salesmen who just don’t know when to quit, and Applejack's family have been their intended victim more than once. Not helped by the fact that Applejack has sided with them, simply in an attempt to teach her stuck-up grandmother a lesson.
 * Pinkie Pie and Cheese Sandwich. This rivalry started with jealousy on Pinkie’s part, as Cheese was able to throw parties that were bigger and more fun than Pinkie could, helped by the fact that Cheese was rich and had a bigger budget. The rivalry ended when Pinkie found out that Cheese had been trying to emulate her.
 * Nightmare Moon and Daybreaker. Having Luna openly oppose her sister would have defeated the purpose of the plot, but when Celestia’s evil side spawned a monster called Daybreaker, Luna was able to let her own evil side out for an Evil Versus Evil of this Trope.
 * Leatherneck and Wet Suit from  G.I. Joe: A Real American Hero. Given that the former is from the Marines and the later from the Navy, it's little wonder.
 * In The Owl House, Amity was this to Luz initially, before becoming her girlfriend and trusted ally. Lilith is this to her sister Eda, although starting with season two it has become of a friendlier nature.

Real Life
Famous rivalries, where either of the two sides can be considered The Rival, depending on your point of view. "The two most powerful men in Russia are Stalin and the last man who spoke to him."
 * LeBron James and Carmelo Anthony, all the way back into their high school years.
 * Isaac Newton vs. Gottfried Leibniz. Clashed over who actually invented calculus (now most agree that Newton came up with the idea first, but Leibniz probably came up with calculus independently from Newton). The rivalry was mostly one sided, with Newton and the UK treating Leibniz as an personal insult. This resulted in English mathematicians refusing to acknowledge developments in math from the rest of Europe, ultimately holding up English mathematics for about a century.
 * Benjamin Disraeli (Conservative) vs. William E. Gladstone (Liberal), considered to be one of the most famous of political rivalries, lasting a decade and a half. Two consummate politicians who loathed each other, clashed over the post of the British prime minister. (Gladstone served longer as PM).
 * Thomas Edison vs. Nikola Tesla. Fought over the early electricity market, especially over whether power should be supplied as Direct (Edison) or Alternating (Tesla) current. Edison undertook a particularity vicious smear campaign against Tesla, which resulted in Tesla being pushed off public life and dying penniless and alone. Although Tesla has now been vindicated in that alternating current was better for transmission of electricity (if Edison had won, the electrical grid would have been so complex that electricity would probably never have replaced steam power as the driver of modern society).
 * The University of Oxford and The University of Cambridge, ever since the 13th-century, most famously manifests in the annual boat race between the two schools.
 * Similarly (if less old), The Royal Academy of Music and The Royal College of Music; unlike Oxbridge they don't have a specific contest, but expect at least one representative from each to reach the latter rounds of music competitions. Each institution has been known to jokingly refer to the other as That Other Place.
 * University College London (UCL) and King's College London also have a similar rivalry.
 * Across the ocean, there's Yale and Harvard in America and Queen's and McGill in Canada.
 * And MIT and Caltech.
 * University College Dublin and Trinity College Dublin have their own boatrace, presumably in parody of the Oxbridge one. Both unis famously dislike each other, UCD being formerly 'Catholic University of Ireland' and Trinity being famously Protestant has an unfortunate role in this hatred.
 * Don't forget Army and Navy.
 * Joseph Priestley vs. Antoine Lavoisier. One of the first ever rivalries over sicence, Priestley once sent a spy to steal Lavoisier's research on gases.
 * Averted in the case of Wolfgang Amadeus Mozart vs. Antonio Salieri, who were friends in real life. The rivalry was made up by in a play by Pushkin long after the both men were dead.
 * Played straight with Georg Friedrich Handel and Domenico Scarlatti, two virtuoso megastars of the Baroque keyboard. It was later conceded that Handel was the more accomplished organist and Scarlatti the superior harpsichordist. Interestingly, Johann Sebastian Bach, the other obvious candidate for this trope knew Handel by reputation only; the two maestros famously never met all.
 * Maria Callas vs. Renata Tabaldi. Two polar opposite opera singers, they did manage to work together in the end.
 * Joan Fontaine vs. Olivia de Havilland. Rival movie stars who fought over Oscars, they are rival sisters to boot.
 * Aaron Burr vs. Alexander Hamilton. Ended in a duel, Hamilton was killed, and the resulting public outcry destroyed Burr's political career.
 * Two Canadian Fathers of Conferederation, George Brown and John A Macdonald, were rivals. George Brown, the founder of the Globe and Mail, was much fiercer in the rivalry; his quest for power was ultimately fruitless (in other words, he was appointed a member of the Senate), whereas Macdonald was knighted and served as Prime Minister for 19 years.
 * Brown got a college named after him, though.
 * One of the reasons Brown didn't succeed, though, was that he wasn't given the chance: he was assassinated.
 * A number of leaders of the Liberal and Conservative parties of Canada fall into this trope, most famously John G. Diefenbaker (Conservative leader 1956-67, PM 1957-63) and Lester B. Pearson (Liberal leader 1958-68, PM 1963-68). The two men were extremely intelligent, accomplishished individuals who were able to be civil to one another.
 * Others include Sir Wilfrid Laurier and Sir Robert Borden, W.L. Mackenzie King and Arthur Meigen, Pierre Trudeau and Joe Clark, and John Turner and Brian Mulroney.
 * Pierre Trudeau (prime minister of Canada) vs. Rene Levesque (leader of Parti Quebecois, a mainstream political party advocating for the separation of Quebec). The duo fought bitterly over ten years over the independence of Quebec. The rivalry culminated during the drafting of the Canadian constitution, Trudeau, fearing the trouble Levesque is going to cause, had to trick Levesque by waiting until he was asleep before starting the backroom deals that was ultimately to produce the document. Levesque and the province of Quebec never forgave the trick, they still have not signed the constitution.
 * Joseph Stalin vs. Leon Trotsky. Most now agree that Trotsky would have made a better leader, but Stalin won the argument by having a ice axe stuck in Trotsky's head.
 * Appositely summarised by comedian Yakov Smirnoff thus:


 * Revisionist historians, working from newly released archival evidence, have argued that Stalin actually was the better leader, and that Trotsky lost because he simply was not as politically savvy. His account of Stalin and Stalin's rise to power is regarded as smear, insofar as it portrays him as a political non-entity of average ability who achieved power through sinister Obstructive Bureaucracy, and that the real Stalin was a multi-talented Magnificent Bastard.
 * Richard Dawkins and Stephen J. Gould over the idea of gradual evolution or punctuated evolution.
 * Michelangelo and Da Vinci. They held a painting contest to see who was better, but due to outside interference neither ever finished their painting.
 * MSNBC vs FOX News, for the title of the most loudmouthed/opinionated/rude/biased/partisan "news" network. With the most public fight being that between Keith Olbermann and Bill O'Reilly.
 * Got so bad that the bosses allegedly tried to make a truce, which didn't last long.
 * Hockey has a fair share.
 * Don Cherry and European players, though he's softened in recent years.
 * Many British football clubs have these.
 * Manchester United .vs. Manchester City
 * Liverpool .vs. Everton
 * Celtic .vs. Rangers
 * Arsenal .vs. Tottenham
 * Newcastle .vs. Sunderland
 * Aston Villa .vs. Birmingham City
 * Southampton .vs. Portsmouth
 * Watford FC .vs. Luton Town- proving that it's not just the more well-known clubs who hate eachother's guts.
 * The list of sports rivalries are nearly endless, they'd practically need their own tropes pages. However, this trope is probably played straightest in boxing, not surprisingly considering the 1-on-1 aspect of the sport. The most famous rivalry was between Muhammad Ali and Joe Frazier, with Frazier still bitter long after their respective retirements. This was the classic form of rivalry, as they were just about diametrically opposed in the ring and out in terms of temperaments, attitudes, and persona.
 * The rivalry between tennis players Roger Federer and Rafael Nadal has its own page on Wikipedia. (it's mostly on-court, though)
 * Most sports rivalries, including 99% of all college sports, don't include the "respect" part. In the case of rivalries like Ohio State-Michigan, Duke-North Carolina and this troper's Arizona-Arizona State, there's nothing but pure hatred. "Sports rivalry" just has a better ring to it than "sports arch-enemyship".
 * In the U.S., Ringling Bros. and Barnum & Bailey Circus versus Cirque Du Soleil—the two biggest circus companies in the world, each with a distinctive approach to the form. Ringling is "traditional", with three tours that crisscross the country and are relaunched with new acts and themes every one-to-two years; Cirque is "contemporary", in that each show is a unique, theme-driven piece of theater that can run for years on end with few changes. Also, the former uses live animals and the latter does not (with the exception of some doves in Believe). Because Cirque shows are usually performed under tents in big cities and Ringling Bros. travels the broader arena circuit, this rivalry was largely one of style until Cirque started adapting its older shows for arenas in 2007 to expand its audience.
 * How is the Lancashire-Yorkshire rivalry not here yet?
 * It's often joked, though with much substance, that the true bitterest enemies and rival Generals of World War Two, were General Patton and Field Marshal Montgomery.
 * There was a legend in the Army of the Potomac that McClellan and AP Hill had been rivals for the same girl and she had married McClellan. When they were hard pressed the soldiers said, "Why didn't you marry him?"
 * No UCLA and USC? Sometimes they make fun with their opponent's mascot.
 * Otto von Bismarck vs Ludwig Windhorst(Leader of the German Centre Party). Windhorst was by far the ablest and most dangerous critic of Bismarck's policy. The iron chancellor said once:"Everyone must have someone to love and someone to hate. I have my wife to love and Windthorst to hate."
 * University of Kentucky and University of Louisville. Sheer, undiluted hatred in the Bluegrass State.
 * Pioneer palaeontologists Othniel Charles Marsh and Edward Drinker Cope. In their case, it got ugly.
 * Michigan and Ohio. Both states are still a little miffed over Toledo.
 * This creates a strange problem every year for fans of Michigan State University's sports teams: on one hand, Michigan State's biggest rival is the University of Michigan, but on the other hand, Michigan's great rival (as mentioned above) is Ohio State. The great majority of MSU students/fans are from Michigan, raised on a diet of hatred for everything related to Ohio. The result is that a perpetual debate in East Lansing is whether one should root for Ohio State or Michigan when they face each other. Consensus is somewhere around Henry Kissinger's observation about the Iran-Iraq War: "Too bad they can't both lose."
 * The Polish computer game magazines Top Secret and Secret Service. The latter was made up of the old Top Secret personnel who all went and left back in 1993 to start their own mag. These were the old days of videogame journalism, when they still could pepper their issues with very thinly veiled Take Thats at each other.
 * The entire countries of America vs. Soviet Russia during the Cold War.
 * The most glorious sports rivalry in the USA - Boston Red Sox vs New York Yankees in Major League Baseball!
 * Plus the Yankees and the Mets. That's why a "Subway Series" is always such a big deal.
 * Chicago and New York City. Just Chicago and New York City.
 * A more recent rivalry between Karl Rove and Rick Perry has its own page on The Other Wiki.
 * As of late, the media's been setting up Taylor Swift and Miley Cyrus as this.
 * Alexei Yagudin and Evgeni Plushenko, possibly the fiercest rivalry in the history of figure skating.
 * Historically, England and France were like this a great deal, fighting a number of wars against each other all the way up to the 1800s. they've stopped since World War I broke out, however.
 * At one time, many fans always pitted Jerry Goldsmith & John Williams as to who was the better composer although both were good friends in real life.
 * Sega and Nintendo. While they pretty much have had a truce in recent years (often to the point of being partners on some projects), anyone playing video games in the 90s remember this used to be one nasty rivalry, as proven by ads like this.
 * Coca-Cola and Pepsi. McDonalds and Burger King. ABC, NBC, and CBS. Nothing starts a rivalry faster than Capitalism, it seems.