Countdown to Final Crisis/YMMV

Bile Fascination: A number of people have read this series and picked up the trade paperbacks because they'd heard a number of critics deride it (whether it be their peers or professionals).
Canon Defilement: Where do we even begin?
Complete Monster: Superman-Prime and Monarch.
Creator's Pet: Forerunner, who the creators obviously thought would be seen as really cool and a Breakout Character. She even got her own (half a) spinoff miniseries. Fan reaction was tepid at best, and most seemed to view her as The Scrappy. Apparently this eventually got through to the writers, as the last issue of the miniseries has Forerunner transported to a distant planet to rebuild her species.
- "I must go now. My home planet needs me."
- Superman-Prime, like he is in everything else. If there was any sympathy for him in Infinite Crisis, it's gone here due to him becoming even more of a Psychotic Man Child and a flat out Complete Monster.
Ensemble Darkhorse: The Jokester. Too bad he dies.
- There were also a good amount of people reading only to see where Piper and Trickster's plotline went. Too bad one of them dies.
Evil Is Sexy: Mary Marvel: 16-year-old Jail Bait who giggles like an idiot over a phallic-looking rod.
Funny Moments: Mary Marvel's Green Lantern Club.
- The whole series can be this if you take the view that it's so bad it's funny. Its all unintentional, but there are some comedy gems like Jason Todd (the gun-wielding crazy guy) telling a Monitor that he's not fond of gun-wielding crazies, Donna Troy's "I'm Donna Troy BITCH!" and of course "I'LL KILL YOU TO DEATH!" from Superman-Prime. There's also Jimmy's awful Mr. Action costume and Darkseid on Mary Marvel's couch...
It Gets Better: The Earth-51 arc. It went on (almost) uninterrupted by unrelated things, had a lot of cool fights, some really strong moments (like Jason Todd meeting its Batman and this Batman's death) and ended with a bang. Sadly, right after that, the series became much worse than ever before.
Memetic Mutation: All together everyone; "I'll Kill You!, I'll Kill You to Death!"
Moment of Awesome: Piper, once armed with the Anti-Life Equation, blows up a planet by playing Queen's "The Show Must Go On". Hell yeah. This may be the only Awesome Moment in the entire fifty-plus issue series.
Moral Event Horizon: In his first appearance, Superman-Prime kills a pregnant woman and her husband, Dru-Zod (who was that Earth's Superman). And then that Earth's entire Justice League. And finally that entire Earth.
Shoot the Shaggy Dog: Will Karate Kid and Triplicate Girl manage to find the cure to his mysterious virus? Nope!
Snark Bait
So Bad It's Good
They Wasted a Perfectly Good Plot: Jimmy Olsen gets all his Silver Age powers back! Brother Eye merges with Apokolips! Mary Marvel, "deserted" by Captain Marvel, turns to Black Adam! Harley Quinn and Holly Robinson vs. Granny Goodness! A crazy, universe-hopping adventure searching for a character missing for (relative to the reader) years! Paul Dini writing! A lead-up to the biggest Crisis of all! A followup to the beloved 52! A look at the seedy underbelly of the DC universe from the perspective of two repentant Flash villains! The genesis of the Kamandi-verse! What Could Possibly Go Wrong??! Short answer: EVERYTHING.
- And then there's The Jokester, a mirror-universe Joker who uses comedy to fight evil. He was actually quite well written, had a compelling backstory, and fans began calling him the saving grace of the series. So of course, he was killed off after about four issues.
Wangst: Superman-Prime.

"Everything was better on my earth!"

What an Idiot!: Mary Marvel, especially after her second Face Heel Turn.
- Also, Hal Jordan, who blasts off to Oa to get help with the Morticoccus virus and warn off visitors to Earth, only to carry the virus across space, breaching its one-planet quarantine.