GTA San Andreas

Impressions after a few hours of playing:

1. This game is huge. The part accessible right from the beginning is easily as big as the entire cities from GTA3 and Vice City combined.
2. They sure have looked hard at The Sims when they made this. I just spent over an hour having the character work out at a gym and select clothes.
3. So far, actually more fun than either of its predecessors.