Started with Ubuntu -> Hated unity when it came out and bogged down my netbook.
Switched to Mint -> Stuck with it for a while, but as I got more competent/experience with Linux I wanted something more minimal
Switched to Fuduntu which I loved, (except for the name, its Fedora based not Ubuntu based believe it or not) but then it ended up going EOL
Switched to Arch Linux as my "main" distro and haven't looked back. Great community, lets you literally build your own OS from the ground up, pacman is the best package manager around and has all the software I need in either main or AUR repositories.
I've played with Puppy, Fedora, CentOS, Slackware, and a number of other distros on other PCs and VMs, but I've always kept Arch on my "main" machine.