If I can only pick one, then I'd have to go with Capcom, for constantly giving their fans the finger.
Cancelled 3 MegaMan games, blamed the fans.
Resident Evil 6... 10000000 QTE's per second... WTF?
DmC, I'll admit, I'm not much of a fan of DMC, but for some reason, I find myself drawn to Dante, and they turned him into some Abercrombie & Fitch jackass, not to mention that cut scene with the boss in DmC that consists of "Dante" and the boss saying "F you" back and forth... Looks like a bunch of 10 year old kids wrote that cut scene after learning the word ****...
EA easily. Making SimCity always online, day one DLC, microtransactions in payed games. Possibly **** blocking Firaxis by trademarking Alpha Centauri and not doing anything with it. And of course, Mass Effect 3.