I use both Windows and Linux.
I run Windows XP on a computer with a 1.8GHz processor, and Linux on a computer with a measly 800MHz processor. I find that Linux runs quicker than Windows.
Although I prefer the programs that you get on Windows, I still have alternatives on Linux, which work almost as well.
Linux can literally run for hours without even a sign of slowing down, yet Windows slows down noticeably after just half and hour.
Ark Linux, which is what I use, is set out well, provided me with loads of programs pre-installed, and is highly customisable.
I still use Windows for some tasks, but a lot is easily accomplishable on Linux, and Linux is free, Windows isn't. Plus, Linux doesn't give you crappy warnings all of the time.
