PC Gamer here. ^_^
WarCraft RTS fan - still playing online B.Net games [RazorBladeX @Lordaeron], but spending less & less time due to the family & kids (still trying to squeeze in a couple of games a week). Used to play StarCraft and was a huge fan too ... until Warcraft III came out. No time for MMORPGs, so World Of Warcraft is skipped.
Also a StarWars fan, so PC games with StarWars themes are my cup of tea. JediKnights & JediKnights II (campaigns only, no online gaming sadly), Knights of the Old Republic ("KOTOR"), etc. Currently also playing KOTOR II (in addition to WarCraft III TFT on B.Net).
Tried other games & genres as well : C&C series, Total Annihilation series, Counterstrike, Half-life, Diablo series, Battlefield (that was fun!), MechWarrior series, MechCommander series, Final Fantasy VIII ('cos it was released for the PC), aircraft simulators, etc etc etc ... MAN, those were the days of 'pre-having kids'.
PS2 games are nice too ... when I'm at my brother-in-law's place (he's a PS2 gamer). Love those hack&slash games which don't look that great on a PC. But still a PC Gamer at heart.