I've been playing the World Cup game quite a bit recently, I love the whole Online World Cup thing. The only thing that annoyed me about that was when I finally got to the final the person I was playing quit when I went 2-0 up so I never got to see Cameroon lift the world cup
I tried Dante's Inferno too but couldn't really get into it. It was just a bit too weird for me, I'm not into all that hellacious stuff, battling the Grim Reaper and random beasts in the underworld.
You also can't beat a bit of Modern Warfare 2, although I made the mistake of entering Prestige mode online the other day and losing all of my custom classes, guns etc.