[Gammit]

It's my personal opinion that Nvidia has screwed over their customers with their coding (they're making some proprietary optimizations that aren't "covered" by DirectX). Many game developers are pretty upset over this, as they have to write new branches of code just for Nvidia. Furthermore, it has been reported that Nvidia's speed is due to "cheating;" that is, they purposely either don't draw pictures well, or leave parts of the picture out (this reduces the load the video card has to do, and can increase speed). Knowing this, and having owned products from both lines, I vote for the ATI hands down.