I personally at first preferred XP just because all the new stuff hit me really hard, really fast. But this is my 3rd day using it and I LOVE it. It's so much faster, everything is more clean. The only complaint I have is that they make you confirm so many actions, the security is annoying. I'm sure you can turn it off, but eh. Also, it took me forever to figure stuff out at first, but again, with all new technology, that's how it is. I'm used to it now, and again, I love it.
PS-I used to have XP.