Currently the ATI 9700 is the ONLY card that is beating any of nVidia's cards. Take a look at MadOnion.com list of "Hall of Fame" cards, and youll see how much nVidia dominates the chart.

And there is just so much "support" for nVidia. This is of course from someone who has used both.

And the 30.87's are the highest drivers "certified" by windows. The 41.03(7) is already out, with folks swearing by its performance.