How about actually asking a fućking specific question then, douche bag, like "I like ATi, I like it because ___ for all of you who like nVidia, what do you like about it?"
In answer to that question, I like nVidia a bit better from personal experience because of the quality of their card and software support, and all of the eye candy a bit of coding can put out, like in FarCry, I don't really notice, though, considering that most of the time I'm too busy having fun, but if speed's your thing, go with ATi.