I like food, Photoshop, boss fights and really dumb jokes.
Here's a fave game list, everyone else have them (alphabetical order):
Ape Escape Batman: Arkham City Beyond Good & Evil Doom Octodad: Dadliest Catch Oddworld: Abe's Exoddus Pacman Championship Edition DX QWOP Rayman Legends Shadow of the Colossus Sonic 2 Tekken 3 Tetris Wario Land 2
(NOTE: I'm only putting one game per franchise now, for variety's sake. Some choices that I really truly love have therefore been removed. Doesn't mean that I love them any less.)
I also strongly enjoy games and series like Zelda, Burnout, Mario, Sly Cooper, Ratchet & Clank, InFamous, Jak & Daxter, GTA, Saints Row, Counter Strike, Splinter Cell, Tomb Raider, Worms, Roller Coaster Tycoon and Metal Gearrr, as well as tons of indie games like Limbo, Mutant Mudds and Guacamelee. I don't have these at the absolute top though, great as they might be. If I did, this list would be crazy long, and I prefer to keep it short and personal.
(NOTE 2: My horizon has expanded a lot since I wrote this, and will probably continue to do so)
Platformers are my favourite genre, followed by third-person action adventures. I do enjoy a wide variety of genres though, with the only ones I tend to dislike being RPGs and, to some extend, RTSs (go ahead and pronounce that last one). I'm usually open to action games of any kind.