I used to love Sonic the Hedgehog on Sega--played it all the time!! My husband has a playstation, but I don't like to play anymore. My little brother LOVES Halo, they have tournaments and play all day and night!!
I prefer board games, and I really like Trivial Pursuit, and Cranium, as well as Scattergories and Balderdash.

and on the computer, I love the game that is like tetris from nintendo--I can't remember the name--cubemaster, maybe??