Honestly, you really can’t go wrong with either one. I tend to turn down alot of that filtering and AA stuff anyway, as I refer having a sharper image, jaggies or not. Plus the higher you go in resolution, the less AA and filtering is really needed. Right now I am playing GTR2 in 1920x1200. It looks great with only the lowest level of AA and still gives me a great framerate.
I guess that puts me more in the nvidia mindset, where framerate is king, but there is nothing wrong with ATI’s approach either, because you can always get the framerates by turning down the AA and AF.
The power requirements are getting out of hand, though…