I'm not sure on the stats but generally people I speak to have 360's over PS3's which tells me which one is the prefered games console

I didn't buy a 360 for any specific game but as it turns out there have been some awesome games out that are not on the PS3, a large amount of people claim to own a PS3 solely to play Gran Turismo when it eventually comes out but Forza 2 was what GT would of been and IMO with Forza 3 now out they know they have their work cut out to improve on that, especially as they have been talking about the new Gran Turismo since before the 360 was even released !