Before you accuse Anand of intentional bias in favor of nvidia, you should find proof. Personally I think that Anand's benchmarks are more thorough than Tom's by a good margin, what with using more than quake3 for all open gl performance. I think that if Anand were biased, ATi wouldn't grace him with a personal preview of its products.
Don't worry about AA0, he calls every site "biased" when the results aren't in favor of ATi. It's called ATidiotism.
Granted, the 8500 looks much better now. But in looking at all the image quality differences, for crying out loud, it is so minuscule that there's no point in even trying to compare. You literally have to zoom in to even get a hint of difference between the 8500 and the TI 500.
Since 95% of gamers buy cards based on speed and reputation, the 8500 is certainly going to need just a little more time to win over in that arena for gamers.