Archlinux

If you want to learn about linux this is the way to go, it is (relatively) easy to use, and it would teach you the linux basics. The best part is at the end you get a stable OS running on your pc with the applications that you use and nothing more. Everything is kept updated thanks to a little thing called pacman. This is not a technical review about Arch, just a little something for more info take a look at their site.

Have fun