my desire to have my own personal network infrastructure in my own home, and FreeBSD seeming to be the best tool to make that happen
I agree
At least with recent versions, you get everything you need, a great storage solution including simple volume management (ZFS), an integrated hypervisor with all the features you could want, containers (aka jails, this is an old one), great support for advanced networking (e.g. VLANs and link aggregation) and so on. I bought a single server machine for my home, running FreeBSD with a minimal set of packages, but many jails and virtual machines for anything I need (router/firewall as a vm, domain controller, file server, DLNA media server, asterisk pbx, internal web server, wifi controller, application server with a full KDE5 desktop, and so on...)
more robust and secure with Linux (which I'm quite familiar with)
Hard to tell. The "more robust" might be a reasonable assumption given the fact that FreeBSD is quite reluctant to introduce unnecessary breaking changes (which is a sharp contrast to Linux) and delivers a complete (base) system as a whole. So, it
probably is more robust, without a way to actually measure and prove that claim. About "more secure", unfortunately, I doubt that. Again, this is something close to impossible to decide by objective criteria -- but given the fact that FreeBSD code is reviewed only by a fraction of people compared to Linux code, you would expect vulnerabilities in Linux (and GNU userland of course) are found and fixed more quickly. On the other hand of course, FreeBSD is less exposed, so it's a reasonable assumption that the "bad guys" also find fewer holes. All in all, I wouldn't rely on the "nice feeling to run a more secure system", that probably isn't the case.
but more widely supported by PC hardware than the other BSD flavors.
Most probably true.
Having a FreeBSD home server w/ZFS is a tremendous thing. Watch out for the ZIL performance bug. Nothing show stopping, but could be an issue.
Could you elaborate on that one? I use ZFS and I'm quite happy with it so far -- what performance bug? Got a link or something? Thanks.