Maybe I got no life but I have GTAIV! I decided to spend 12 hours playing it last saturday and it was the best time I had in a long time. This might sound a bit crazy to you but I used to do this as a teen, and actually I haven't played a game as long as I played this since 1998's Xenogears.

I spent the time doing missions and actually enjoing the cab rides with almost no glitching. So far, I only aquired the second safe house and I'm still waiting to unlock the Alqonquin bridge to the western island.