So, I'm a lifelong Windows user. School, work, home, yadda yadda...
I learned about Linux while just recently while in class at ITT Tech, and I had to try it out. I tried different distros, and liked a lot of them. I liked Ubuntu, Kubuntu, Fedora, Mandriva, Mint, and others. For me, Xubuntu has been the easiest to navigate through, customize, set up, and enjoy. There are so many distros to choose from, I'm sure there are those who would disagree. That's OK. At the end of the day, I have a dual boot with XP and Xubuntu on my laptop, and I'm going to install it on my pitiful excuse for a desktop soon and wipe out XP altogether on that computer.
Needless to say, I do not plan on upgrading from XP to Vista or Windows 7!! ;)