New purchase intent study shows Xbox 360, PS3 tied; Nintendo lags - Joystiq - www.joystiq.com: "In a survey of nearly 1600 consumers, Ziff Davis Media found that approximately 37% intend to purchase a Playstation 3, 34% an Xbox 360, and 14% a Nintendo Revolution."
The word on the gaming street is that the difference in gaming performance of the two consoles is not large.
I don't know how true this is. I am no expert on game development, far from it! I have not done a lot of research into it but I think the amount of info available to make a conclusion is now available.
If you do find out, let me know.