nVidia's anisotropic quality always has been as good or better than ATis. The only difference is that they got rid of the stupid "Application, Balanced, Performance" settings, and re-named them to what they really are. The image quality problem before was because people kept comparing nVidia "Balanced" to ATi "Quality", which really ain't fair at all. They also seem to have significantly improved the aniso speed, confirming what everyone was speculating - that Application (Quality) AF on the NV3x was buggy.
I'm still slightly worried about the GeForceFX's antialiasing quality. While its AA is clearly the fastest on the market, the screenshots I've seen on FiringSquad are really unimpressive. (quality wise) Looks like they still do not have the sparse sampling patterns and gamma correction that R3xx has. Comparing R3xx 4x antialiasing to NV3x antialiasing isn't fair at all. On certain games, especially UT2k3, the NV30 antialiasing is worthless. I haven't seen that many NV35 AA screenies, but the quality still seems closer to NV30 than to R3xx.
However, with the speed advantage of NV35, I gotta hand it to nVidia. Job well done, you have redeemed yourself for NV30. Now let's see what ATi will respond with. It doesn't look like R400 will be ready anytime soon. But with the success that people have had with R350 overclocking, I'd like to see how a Radeon 9800 "Ultra" would do against a GFFX5900U.
Now if only they would release some games that make full use of these nifty graphics cards... not UT2k3 or Splinter Cell, those are bloatware. Give us DOOM3 and Deus Ex 2!!!