More interestingly the 'vi' on BSD is actually 'nvi' for licensing reasons, and 'vim' isn't technically vi improved, but stevie improved, although stevie was a clone of vi so it's all fun.
I had to do some stuff with ZFS on Linux a few weeks ago and it's so much better on FreeBSD, although I still prefer OpenBSD personally. I'm perfectly happy running nvi though nowadays. Getting deep into BSD land these days, trying to daily drive it, completely comfortable in Linux but definitely some fun differences.
