Boring but Practical/Film

"Blue Raja: (incredulous) There's no theme at all here!"
 * Mystery Men. Early on, some of the heroes try to infiltrate a mansion with an array of gimmicky but mostly useless powers. When they come across a group of disco-themed villains guarding the mansion, they ridicule them for bringing pistols, junction pipes, switchblades, etc to the fight which have nothing to do with disco. A Curb Stomp Battle ensues.


 * In the Star Wars universe, the YT-1300 Corelian Light Freighter when compared to an X-Wing or Star Destroyer is one of the most boring ships in the universe. It is, however, one of the most popular. Reliable, durable, easy to modify and repair in an emergency, the YT-1300 is a favorite of smugglers throughout the galaxy. The most famous example, of course, is the Millennium Falcon, the best example of what a resourceful spacer can do with the design.
 * The X-Wing also falls into this in the Extended Universe, where, before the production of the XJ and Stealth X series, it was outmatched entirely by next generation fighters like its distant cousin the E-Wing and the Empire's pure hotrod of a starship, the TIE Defender. Yet even all the way to the Yuuzhan Vong War, the X-Wing remained perhaps the most effective fighter in the Rebel Alliance/New Republic/Galactic Alliance's arsenal, thanks to its near perfectly balanced performance and capabilities, as well as the ease at which pilots (namely Rogue Squadron) can use them. Sure, a few good pilots in TIE Defenders are a considerable threat, but an X-Wing with Luke Skywalker, Wedge Antilles, Tycho Celchu or Corran Horn at the controls is guaranteed to be the superior force (no pun intended).
 * And let us not forget Princess Leia.
 * The Hunger Games has both the trainers and Haymitch stress that smart tributes learn wilderness survival and forgo getting glamorous weapons at the start before bolting for high ground and water to give themselves a good chance of survival.