I never liked Vista because it sucked, I stayed with Xp until I tried 7, which makes Xp look like a primitive OS.
Windows 7 uses Vista's core. So the drivers on Vista will work on Windows 7.
I've been using Windows 7 RC 1 as my main OS for over 6 months now, and I can honestly say that it's a great come back from Microsoft.
They have fixed all the performance issues that vista had, so it's very fast, even faster than xp, it doesn't require high hardware specs like Vista, up until now it never crashed, it recognizes hardware faster than Vista, I haven't noticed any compatibility issues, they removed all the annoying security checks that bothered everyone. etc... The list goes on and on.
It's a great OS, I'm very impressed and it's only the RC (Release Candidate).