DOES THE PS3 LOOK BETTER AND WHAT EXTRAS ARE ON THE 360

since the ps3 has been out in the uk for a bit and multi format games are comming out for it and the xbox 360

why are the 360 versions out about a month before the ps3

i hope that this will not be the case for all the games like RESIDENT EVIL 5, GTA4, STRANGLEHOLD, PES 2008,ASSASSINS CREED