At this point, the PS3 has about a 36% installbase advantage in France according to the GfK.
So it would make sense PS3 versions of multi-platform games outsell the XBox 360 versions around x1.36, but it is said PS3 versions of multiplatform games outsell the 360 versions more in the region of 1.5 to even 2 times as much.
My take: It may be some multiplatform owners prefer the PS3 version because PS3 games include free online multiplayer functionality, while on the XBox you as well as your gaming friends need to pay extra money for this every year/month. Also XBox 360 games piracy is more likely to play a bigger role.







