I use FreeBSD for hosting personal web sites. I've used it on and off since version 1.1.5.1. I like BSD in general and have hosted small web sites using NetBSD and OpenBSD. I came back to FreeBSD, mostly because of the broader ports support and binary updates. The packages do most of the work for setting things up. With NetBSD and OpenBSD, there is more integration work to do at setup time. I'll add the caveat that this is for small all-in-one web sites.