This is my ranking for longlivety (single player+multiplayer)

Madden 2002

UFC tapout- I can play this game over and over single or multi

Halo- single player I could never play again b/c it is so repetative, but I like playing it split screen w/ friends

Project Gotham Racing- I was addicted to this game but it is dusty now

Munchee's Oddysey- Fun little game but nothing too special