> They do however have fairly-powerful jails(not as powerful as LXC though)

To be honest, I grew up on BSD's, FreeBSD especially, and only later turned to Linux due high marked demand. In my projects, I've tried using LXC as the light (kernel) virtualization of choice, but I've found it extremely buggy, with a lot of security issues, implementation different in almost every flavor of Linux, documentation lacking... Not even close to maturity of Jails, to which I eventually turned back to. Dont get me wrong, I am still big fan of LXC and I can see it working in future, and having features I would like to see in Jails (they're getting there, especially recently) like fine grained resources control and restriction and so on, but as of today, it needs a lot of work in polishing and maturing the code.

> fairly-powerful jails(not as powerful as LXC though)

IMHO LXC wishes it were jails with vimage, and if you really wanted some hillarity you could actually run a linux container-like system under a jail using the linuxulator.

Linux namespaces allows namespacing almost any subsystem, although I don't know what FreeBSD offers w.r.t that.

> Linux namespaces allows namespacing almost any subsystem

Namespacing has nothing to do with it. Not even a decent try.

>not as powerful as LXC though I think many would completely disagree with this.