lxc was rather new when I started looking into this stuff. Since jails were much older, I just went with FreeBSD. Also because I was a little biased against Linux because on my personal computers Ubuntu and Fedora had crashed occasionally.

Now I think lxd is supposed to be a better user experience than lxc. Same backend better frontend. Like ezjail or iocage for FreeBSD makes the management easier than doing it all directly.