londrum - 3:11 pm on Sep 17, 2010 (gmt 0)
can't talk about the others because i dont know them, but phpbb has always been good to me. mine is pretty much hacked from the ground up with a billion mods and a new template, and that's whats good about it. if you want to change something about the way it works or the way it looks, its easy-peasy. it's easy to export bits of it onto the rest of your site as well... like having the login on all your pages.