I started on Ubuntu & tried a lot of different Linux distros. What I found was simply that I liked the deb-based distros more than the rpm-based ones. So I stuck with Ubuntu for a while, then decided to try the distro where it all came from.
I found that I liked Debian very much, mainly because it comes without a lot of the unnecessary bloat that comes with Ubuntu. So I can have a nice lean system running only what I need/use & nothing more.
So, once I figured out how to install nvidia drivers properly with Debian, I switched. And I'll never go back to Ubuntu.
I think I know enough about Linux now that I would never bother with a second-hand distribution like Ubuntu/Mint/blah/blah/blah.
If I want deb, I'll use Debian & If I wanted rpm, I'd use Fedora.
It may take longer to get a response here than the Ubuntu forums, but when you do get a response at the Debian Forums it's from someone who actually knows what they're talking about.
Also, at the Ubuntu forums, you can't say "sudo passwd root"
My Specs; AMD X6 3.3Ghz, 8Gb G Skill RipJaw RAM, Samsung 64Gb SSD, 2x 3Tb & 4x 2Tb SATA3 Hdd,
Xigmatek Aegir CPU Cooler, Gigabyte nvidia GeForce 460 GTX, Gigabyte 990FXA-UD5, Xigmatek Elysium Case,
Debian Wheezy [64-bit], Gnome 3