FPS = Call of Duty 4, hands down, closely followed by Gears of War, then Jericho, I LOVE MAH BLOOD
Sandbox = GTA 3, as good as SA was, it didn't have that Sinister feeling that GTA 3 brought to the table, I actually felt like a mobster while playing it.
RPG = I haven't played Oblivion (so kill me) but my favorite of the genre is Fable, and after that Archlord.
Goblins **** anyone?
