I don't know anything about the first two, but I just got the ASUS last week, and it's running beautifully. It's able to run most of my games very smoothly on at least high even with my Q6600 Processor and 4GB of RAM. Cooling is excellent with the fan and it runs surprisingly quietly.
AH YES, thanks very much, I asked this question another place, and everybody said that the ASUS is much much cooler and quieter. Thanks.
And please, what FPS do you get in some games?
And also, (important), did you have two 6 pins from PSU, or did you use the molex convertor for one of the ports?