That's the beauty of OSS--choice.
Right now it's Mint...
I use Fedora--I first used it as my main OS in 2003, with the initial release of Fedora Core 1. I'm running F23 on one machine and F22 on another.
Fedora was my first, where I learned CLI. That’s where I learned to appreciate GNU. Everything in the same place. I built a SUSE server OS, LAMP stacks. It’s all fun and you can’t beat the price. I’d better join your list.