Ok, heres my opinion. I have a PS3 which i LOVE. Now i have played on both systems and while the XBOX is a great system, it does not have a BLURAY player which is a major plus with the PS3 and the graphics and are as brilliant as on the PS3. BUT The XBOX does have great online, as does the PS3, but XBOX Live is built up with many more members
In my opinion, my NON BIAS OPINION, i suggest the PS3 as is has a better longevity than the xbox, considering it does havea BLURAY player which was declared the winner of the nexgeneration DVD battle.