People believe that nvidia is better, but all the GPUs have their own positive and negative sides. I suggested nvidia coz it will never cause a stop 0xA0000001 BSOD, at least

But all the other issues are totally equally likely for both the vendors. Personally I use nvidia, experienced some bad things with the earlier nvidia cards I used, still got nvidia again, out of a belief that nvidia is better.

I know some people using ATI cards happily for long. Here one thing is said, the service of electronics goods depend on luck, to some extent.

About thy pricing etc, better you servery the local market.