In the beginning I wasn't a Vista fan at all, however the issues I was facing at the time were not the fault of the operating system, they were driver support from Nvidia and Creative, making gaming virtually useless.
Those problems have long since been resolved and my Vista64 performs flawlessly, even running older 32bit apps!
If Vista isn't running great for you, I'd suggest looking into the latest available drivers for your hardware or upgrading your hardware if necessary to get past those old problems.
If you're running older hardware with a cutting edge operating system you may as well expect to have problems, unfortunately that was the same pricetag that came along with WinXP when it was first released.
My Vista64 Home Premium works great and DX10 in games is something you'll have to experience to appreciate, I cannot explain that to you!
Going Vista, I have no regrets! Have a great day everyone!
PS Almost forgot, If you're bashing Vista, and you haven't even tried it???
You don't even know what you're talking about! How lame is that?