[soapdog]

I'm not an expert on this but Jails has a ton more features. You can replicate a docker-like workflow if you want, and there are some scripts to do exactly that. Just an example of something that I don't think you can do with docker is "nested Jails", you can have hierarchical Jails running which can lead to some really nice organisation (or a mess, it depends on who builds it, but that is true for anything right)