As exciting talking about past experiences and comparing benchs/cards is, there's something important
we're not taking in consideration for the deal breaker, and that is how much does the OP plans to spend?
. You see, I personally don't mind spending extra 20~40$ for the ease of mind. Because, let's get some facts straight:
-NVIDIA looks the most attractive choice, because of the low complaints and high satisfaction rates
-AMD is a better deal IF you don't want to spend a single additional penny, in trade of reliability.
-AMD drivers left a stigma. I used to own a 5850, and couldn't completely remove the drivers in any way! Had to regedit the hell out of it :/ Don't even want to get started on how each update was feared since some of them were just plain bad and worsened everything.
-Even though AMD drivers are steadily becoming better, back in 2007 NVIDIA already allowed custom 3D settings for each application. Not sure of how things are going on AMD, but maaan it sure took long to implement a BASIC feature like that.
So yeah, if killergram has extra pennies to spend and wants a more *solid* product.... 660 Ti