Vista so far has been rubbish compared to XP, I've gone back to XP after hours trying to deal with hardware issues. BSODs all over the shop, especially within gaming. The whole OS seems to be exactly the same as XP but with the 'Aero' facelift and a few new bells and whistles here and there. UAC is a highly annoying 'feature'. Granted I only use my pc at home, but XP is where its at for now, been stable as ever lately.
If I understood how Linux and all that jazz worked I'd probably be a bit more of a happier pc user (if that exists?... Apple anyone?)
Blackscreen of death sounds like rubbish, and if it isn't, it'll get cracked by the time I finish writing this sentence.