Hi, I think Windows 7 wins any debate hands down not just because it's the latest version of the OS that MS has to offer (and newer is usually better in most cases) but also because it's a lot faster, less buggy and a lot more stable as compared to Vista. Vista, if you ask me, is history. Even XP was and still is a lot more popular than Vista and people still prefer to use it for compatibility and other reasons (although I think it's high time to ditch that one as well). All in all, Windows 7 runs really smooth and doesn't crash quite as often as Vista or older Windows versions did. Not to mention the lightning fast startup and shutdown times.
The windows 7 is the combination of the windows xp and vista . the windows 7 is not support full feature of the xp and vista .the vista is giving the feature that is anti virus is not come in this windows .its means that provided the anti virus security. but windows 7 is provided security
window 7 is first choice of every one. But vista graphics and color is good than window 7.But, if you think user point of view then window 7 is best because user are friendly with window 7 than vista.
I highly prefer Windows 7. Windows Vista was too buggy and incompatible. All of my XP software has been running fine on Windows 7 so far.