Vaan from Final Fantasy 12 and Trish from Devil May Cry, and Farah from Prince of Persia: The Sands of Time.
Vaan because he's a useless twat you has nothing to do with the given plot in the game, his back-story can be summed up in two-sentences (His brother died and that made him sad. He wants to be a sky pirate.) and he doesn't even get more depth as the game goes on. Basch was supposed to be the main character of FF12, which would have made a hell of a lot more sense, and Vaan was switched in LITERALLY because the second director of the game (The first having come down with a serious illness at the time) decided that Basch wasn't pretty enough. This is also incidentally why the plot drops off the face of the earth at some points in that game. Screw you, Vaan. Panelo can stay, but you can go die in a hole. I'm also pissed at him all over again for being chose over Basch AGAIN in Dissidia: Duodecim. Go away kid, your bothering me!
Trish bugs me because she's asks for my help after stabbing me in the heart, electrocuting me, and throwing her frikkin motorcycle at me, THEN after Dante completely destorys the bike she's all "Wait I'm not here to hurt you" Coulda fooled me! Then when she gets to the island, she just jumps away and doesn't help, *****! Also she's by far one of the dumbest chracter reveals in Marvel vs. Capcom 3
Kinda funny how Vaan and Trish are both wastes of space in a massive crossover fighting game...
As for Farah, she just has really stupid A.I and was a really annoying character, she shot me in the back causing me to die once she said "Oops" in a joking tone as I died, I din't have sane either at the time. She also one time jumped FROM a high area to attack the enemies I was fighting with her bow, at CLOSE RANGE. Farah, sweetie...YOU HAVE A BOW, STAYING ON HIGH GROUND OUT OF ENEMY REACH IS TO YOUR ADVANTAGE!
Those are actually the only 3 video game characters I out and out HATE...oh wait, also Big the Cat from Sonic, Because y'know nothing says fast action Sonic the Hedgehog action like poorly programmed slow ass fishing mini-games.