The eternal question : Which is better - EMACS or Vi? OK, this post is actually about the other eternal question! As I use Linux, Mac, Open and Free BSD (Yes, and that other ball of wax too...), I think I can answer objectively: Both OpenBSD and FreeBSD are reasonably easy to download, install and run on pretty much anything. At least, I have not found a server/desktop/laptop computer that it would not run on. I even ran OpenBSD on a Sparc Station - remember those? OpenBSD Theo De Raadt has a ' cut the nonsense ' mentality so OpenBSD is simpler, with a smaller repository of programs, about 30,000 packages. However, with a little effort, you can install FreeBSD software on OpenBSD to get the rest. After a few days of use, you will know how. The best OpenBSD book is Absolute OpenBSD: UNIX for the Practical Paranoid. In general, OpenBSD feels a lot like Slackware Linux: Simple and very fast. FreeBSD FreeBSD can also with some effort, run Linux programs ...
Autonomous planes, trains and cranes...