I am currently playing...
Madden 09 (PS2) - I will own you
Legend of Zelda: Link to the Past (SNES) - A true classic
AVGN: Angry Video Game (PC) - side scroller, a bit repetitive, but I am addicted.
I've been holding out on buying a PS3, but I will probably do it soon. I can't wait for Fight Night Round 4, UFC Undisputed, and God of War 3.