There will always be bugs with drivers, except that nvidia is generally faster at ironing them out and releasing fixes, but the latest drivers from ATI seem solid for the moment (all it takes is one game with a hiccup to mess that up though). As for gaming rings, well generally I go with the cheapest AND the most powerful option available, be it nvidia or ATI/AMD i don't care. If nvidia comes out with a kickass gpu at affordable price than I go with them, if ATI comes out with than they are my choice. I don't take sides. Currently ATI has the upper hand because the HD5xxx series span every prince range and every performance range (you want monster performance at ridiculous price, ATI has it, you want cheap but fast, ATI has that too)