/r/ Linux info

I'm looking at getting away from Microsoft OS's, and trying one of the open source OS's.

My question is, "Which one"? I've seen many versions on the shelves, but I don't know which is better for the first time user.
So instead of browsing the magic google, I decided to try here.

http://images.google.com/images?q=ubuntu-tan

I don't know if I'd go so far as to say "jungle fever"; but you be the judge.