Best VM setup for FreeBSD

[TJ]

Hi guys,
i am looking to setting up some virtual FreeBSD servers.

I run a run a network that only has FreeBSD hosts and i want to setup a few test boxes but would be much easier if i could virtualise them.

I know there is bhyve in CURRENT but it is still young and wanted something tried and true, the FreeBSD handbook suggest VirtualBox, but there are also things like qemu and xen.

What is the best and easiest to manage?

I have only ever used EXSi before but the ESXi client is not available for *nix so it makes managing a bit more difficult.

Thanks