I voted strategy games as I have played traditional RTS's such as Command and Conquer, as well as turn-based one such as the Civ series. It also includes the Total War series and HoI2.

I have played a fair few FPS's though, including Half-Life, Call of Duty, NOLF1 and 2. I also love Trackmania (I think the original is better than Trackmania Sunrise).

The only RPG's I have played are KOTOR1 and 2, but recently I have been playing World of Warcraft loads (it's been like a second life in the past few weeks, talk about obsessed ).