There is the thing... color from ati is more natural and present for some reason... but spend a few hours out of my schedule to figure out which driver to play a game sometime just make me tired at time... but i still pretty a much ati/amd gpu supporter
I've heard this too, that ATi/AMD somehow has better color reproduction. I can't say for sure, one way or another, but I do prefer ATi/AMD and keep going back to it.
I'd actually started out with nVidia, let's see:
Riva TNT, GF2 MX400, GF4 MX440, Abit GF4 4200 Ti, ATi 9700 Pro, Hercules 9800Pro, FX5900, MSI GF 6800 Ultra, GF 7950 GX2, 2x HD 2900XT, HD3870 X2 + HD3870, 2x HD5870, 2x HD5970, 2x PowerColor R9 290X, LeadTek GTX1080, 3x VEGA64 (2x GB Gaming OC, 1x PowerColor Red Devil)
These are the cards that I can remember owning, may have missed one or two here and there, memory (bad RAM) is kinda fuzzy now.
Anyway, I still have the two 9 290X, GTX1080 and the three VEGA64