I honestly never had such problems with any windows version I had. From an occasional win3.5 bsod to win7 hard loc. Never had the kinds of problems that people have claimed to have. win3.5 was fine, 98, 98se,ME,XP,Vista, Win7, had them all, except 2000 version but never needed it. Just minor things. Damn Microsoft and there OE errors its the only thing I can think of. But if i had to rate them on the one i had the most problems with though, it would have to have been XP pro.
Maybe I'm just happy not to mess with things that shouldnt be messed with.
Its more aimed at the arguing over which OS in the thread. The biggest problem is OE errors.