In no order ,
Red Dead Redemption
Rct 3
Gta San Andreas
Bully
Gears Of War 2
Halo Reach
Mass Effect 2
Fallout 3 or New Vegas , not sure which one
NFS Underground 2
C.O.D Black Ops (purely for Nazi Zombies)
Just what instantly popped into my mind , if I thought about it then there would probably be couple of different ones .I also love the Fifa Francise as a whole but don't think you could put any particular game within the top ten