I generally dislike Vista, but due to some interesting twists of fate, i am now using Vista on both my computers ::) (32bit on the laptop, and 64bit on the big one)
after you disable the annoying features, Vista is not such a hassle anymore, and if you're one of the lucky ones that don't get the frequent BSODs, it's not such a bother, and you actually get to enjoy the new features... i for one love the miniature thumbnails on the taskbar, (they update in real time)
but i'm really just waiting for 7 to come out... i hope it's as good as i hope it is
Cheers