Im not playing that many right now, but now and then I pop in games in my that big monster. Beyond good and evil, oddworld strangers wrath, need for speed most wanted, cronicles of riddick, worms 3d and James bond: everything or nothing are the reasons I keep it under my TV.
And some games, like halo 1, splinter cell, dreamfall, well just about half of the xbox games, run really bad on my 360, with lots of tearing or low fps.