Action - All metal gear solids or Call of Duty or Army of two
Stragety - Splinter Cell and Ghost Recon
Sports - Fifa 10
Those are all the ones i play.
At the moment tho im really into any game willing to give any Ago, I like Army of two because you can do mission with your friend just like online same with splinter cell ( can't wait for Splinter Cell: Conviction to come out ) I like Metal gear solid because its an amazing game to play because it isn't one of those games which you just play and say it was good, it's one of those games which gets you into the story and makes you want to play the next one to, it has great story to it + great action and plus its quite hard but its worth it in the end
. And I like Fifa 10 because I like Football/soccer