The whole thing about windows 7 being better than holy water is the stupidest thing and such BS.
Care to elaborate? Sounds like you had a bad result and threw the toys out. Calling 7 a "piece of crap" belies a certain knee-jerk ignorance on your part. It performs far better than Vista, even on a considerably lesser-spec machine, and it weighs-in at less than half of Vista's gargantuan hard-disk footprint.
I personally think AA makes a huge difference to the visuals of a game
This is the only issue I had in this entire thread - being told that it didn't improve the image was a bit of a proverbial red-rag. I really don't care if it doesn't make it into GTAIV, as I'll probably have played the game to death by then anyway.