See, this is what starts fights. You state this like it's fact, when really it's just your opinion based off of a bad experience or two. You really should say that you've had nothing but bad experiences with them, you wouldn't reccomend them, et cetera.
If you say that, people with brains won't read your post and think, to themselves, "wow, look at this idiot dispensing advice like he's installed every single video card, with every single driver set, on every single windows configuration"
OP, like some have said here, both has advantages and disadvantages. IF....IF you get a good, clean, driver install from either company, I'm sure you'll have a great experience. Sure, you might get a dud card once in a blue moon, but that happens with everything, not just vid cards.
I dont need a teenaged noob lecturing me on what I should and shouldnt say. Lets just say I have been installing video cards since before 3dfx was popular, and I have the experience to make the statements I made with confidence. I stand by exactly what I said exactly how I said them.