http://www.gamespot.com/features/6171831/p-7.html

Once Again Sony PS3 has been compared to the 360 and come back lacking. Ha ha!

I believe they will be able to get closer over time but the bottom line still is that the PS3 is harder to develop for and harder to produce results on. Even if the hardware were better (its not), they would still have problems with devloping games just like the PS2.