Especially japanese multiplatforms titles sell much better on Ps3; Dragon's Dogma or Metal Gear Rising comes to my mind.

They don't. Western games, or games designed for Western audiences typically sell better on the 360 (though there are plenty of examples where this isn't the case) just as Japan-centric games generally sell better on PS3. Xbox 360 has a larger Western install base, PS3 has a larger Eastern one.

Western market (we buy more games), and not all games sell better on the 360.

United States

A ton of people who own a PS3 are no gamers at all they just use it for bluray playback. Its mostly PHAT consoles tho    from back in the day when the PS3 was the cheapest bluray player.

I know like 10 people who have just 1 or 2 games and use the system for movies.

Well you should have at least pointed out that some series do sell better on PS3...but its because of the bad repuation PS3 multiplats got from the lazy porting devs did early on, so now its just safer to buy the 360 version of a game.

In US Fifa sells equal or better on 360 just pointing that out.

yea thats why i said RE and FF. i didnt need to check to know they sold more on PS3. for western games i would have to look it up

The OP says world-wide, just pointing that out.

Be careful, though. It works both ways: there are some western games that have sold better on Ps3, and some japanese games that have sold better on 360.