I installed DSL back when I was in elementary school to a laptop. I then moved to Ubuntu (still in 5th grade :P). I stopped using Unix-based OSes for a bit and then started in 7th grade again with Ubuntu. Horrified with Unity I moved to Fedora. I really liked how bleeding-edge fedora was. I also tried xUbuntu because I wanted to try XFCE. (I'm honestly not sure what time period this is in at this point... maybe freshman year of high school?) Since then I moved to Arch with XFCE. (And here we have today) I used Arch for a long time with ocasional distro hopping, then switched to gentoo (recently), but moved back to arch because compiling became a pain.

I would definitely use FreeBSD if it got KSM support which my gfx card requires. I use it on any servers I maintain.