Week 1 (PS3): 800k
Week 1 (360): 850k
If I recall correctly, preorders are a little higher on 360 version at the moment. I also don't think it will have quite the opening that Red Dead Redemption had, because that was actually the second game in the series, and some people likely recognized the name from the ps2 era.
Lifetime (PS3): 4 million
Lifetime (360): 4.5 million
I really think people are underestimating the potential legs this game can have. Even if it isn't a lot of people's style they like, Rockstar games are pretty widely accepted as being very good and enjoyable games. I also think that overall, the game will continue having better sales on 360, because that just seems to be how rockstar games are.
Money can't buy happiness. Just video games, which make me happy.
