ATI was highly critical of Nvidia after they realized Nvidia was cheating on benchmarking tests to make their scores higher and thus make it seem like their video card was better. At the time, I was in the market for a new video card and the whole cheating scandal swayed my decision more towards ATI (not by much, the ATI Radeon 9800 Pro was the best card out at the time). After having been an Nvidia customer for a long time, I bought an ATI.
Now, ATI is admitting that it too employs secret cheats to boost their benchmark scores. What?!?! They hammer on Nvidia for cheating while knowing deep down that they are too! Well, I think its time I start paying attention to Nvidia again. Their drivers are 10x the quality of ATI's. I just hope they'll let me come back :-)
Here's the story: http://www.gamespot.com/news/2004/06/03/news_6099873.html