Should i upgrade to Windows 7 or stick with Windows Xp on my specs?

ever heard of the saying 6 and half a dozen?? well this is one of those cases. The thing is you could get on that little better with another gig of RAM, but its not important. But just to say, Windows 7 is very good but can take up to 16gig of space. Also depends on what you want to do as well. I upgraded from Vista which I found was a must as vista was bad. Where Windows XP is good and maybe not worth the upgrade