I figure I'll quit lurking and start posting.
I switched to Linux from Windows, and God forbid I ever go back. I only use it when absolutely necessary.
I really like Ubuntu and their mission statement. I've had no issues whatsoever with Ubuntu.
Ubuntu is very stable, and fast. For me that's the biggest thing. I like a simple and responsive OS.
The software center is great, it's saved me headache thus far.
I'm running 11.04 but with Gnome 2. I used Unity for a short amount of time but had to switch back.
So far I think Gnome 3 is great with what they've done, but I tried it and hated it. Maybe it'll grow on me?
So for right now Gnome 2 is my preferred GUI.
I changed majors from History to Computer Science and I've really gotten into Linux. I'm looking into Archlinux right now. I'm not overly experienced with the command line so I'm going to give it some time before I switch completely. I'm still learning so I figure it'll be gradual.