I think my favourite would be strategy games, usually, but not necessarily, real-time. I guess I just like the strategic element. I very rarely like first person shooters, unless there's something special about it that makes me like it. I quite liked the Jedi Knight series, even though the last two had pretty poor storylines.
As for RPGs, that depends on the specific game, I really either love it or hate it.

I am absolutely nuts about survival-horror (Silent Hill 1-4). I also like science-fiction and comedy.

My Gods I HATE FPS and RPGS!

I like first-person shooters like CS and Half-Life, and RPG's like Fallout 1&2, Baldur's gate 2, Diablo 2+Exp.pack, strategy games and survival-horror, like Silent Hill, but I have only played the first one though. But mostly any kind of RPG...