I play all kinds of genres. I'm a gamer. Not just someone who sticks to one thing.
RPG, FPS (gotta love the Halo series), Strategy, Platform...
My top 4
Pretty much FPS in form of Team Fortress 2 and Quake III since the Live beta invited me to test it. But also RTS (Warcraft III), RPG only with consoles, puzzle and sport games occasionally.
Hmmph... I wonder how badly I'll get addicted to Diablo III, when blizzard releases it.