Yeah, I don't know anything about computers or "anything at all" Good one
You guys are too fucking stupid to do your own research. This guy asked for advantages of Vista over XP. Advantages in which respect? If you do audio production like me, there aren't many advantages yes. If you're a gamer, the main advantage is DirectX 10. If you dick around and don't really do anything on your computer, then there are new security options and a nicer GUI. If you're a parent, there are better parental controls ETC.
General advantages/differences? It's a new OS. Look it up. Why would anyone post everything that's new in Vista when you can find that information in less than 5 minutes by searching M$ site or Google, or are you too incompetent to do that?