Actually... XP is the best ever, you need to know how to use it. Also nLite makes this OS far better than it already is. And the worst os for me is vista... why not me? well cus alot of users actually use this system, and its a new os from ms, thats why its 10x worse than me, if you buy a laptop, you may get vista and cant goto xp cus of drivers issues... also vista just seems XP with more crap in it... some features actually sound usefull and well designed but most is just bloated crap i dont need, and doesnt even work.. If you think XP is exploited alot, so is vista, or any other OS even tho the new "Security" features vista has. Linux is good and all, it runs smooth, i like the way how you can download/install packages. But its not really supported, driver issues, not many games run on it... not sure if there is a msn/wlm client that u can use cam with in linux... that sort of stuff, Still i found some bugs in Ubuntu. highly nLitened XP is far best os for my personal preferences, and i never ran in trouble with viruses or anything.