[asveikau]

I've used both as desktop systems. I can't really quantify it, but I feel like OpenBSD "feels" better on a laptop or desktop. Maybe because their developers focus more on that as opposed to thinking only of servers? I don't know. Anecdotally, I have had a few systems where wifi or graphics work better, or sooner, on OpenBSD. Sometimes FreeBSD support has appeared later in these cases. (eg. A few years ago, FreeBSD's Intel graphics driver was way behind, but it's since caught up.)

But there are downsides. Upgrading OpenBSD can feel painful to the point where I put it off (though it's getting better). You may have to randomly re-write a config file at upgrade time, or sometimes release-to-release they will remove useful features, like Linux emulation a few years ago. FreeBSD ports and pkg sometimes has stuff that I don't see in OBSD's ports tree.

I think to answer the question you'd need to take a look at what features, hardware support, and ports you need, and how well OpenBSD does or doesn't suit it. Maybe try out OBSD on a USB stick or something and see how you like it.