I'm not a "trademark" fanboy. Usually I'm a "tech" fanboy.. Whoever gives the best packet will take my money. And this paket include: Performance, Price, Old or New tech, driver, other software support. Considering the all thing is never so simple as it seems , especially nowadays with economic crysis. At the end, I've always picked nvidia cards to the present, but more because of the habits with nvidia softwares than other aspects I usually had to consider. ATi nowadays is a valid option: drivers are more frequent and with less problems, tech and performance are great, lack of software and marketing is repaid with considerably lower price. If you have not budget problems, I'd suggest nvidia but today, more than in the past, is a hard and very "case sensitive" choice.