I use Joomla - haven't looked at any of the others. It is a steep learning curve in order to get it set up. There isn't a really good instruction book, as far as I could find, and it seemed counter-intuitive to my html web site experience.

But once you get it set up, for the most part it works well. You do need some experience with html coding. I'm not real happy with the word editor. Every so often I find that nothing is working and I have to open up the html code to correct an error that the editor will not deal with. And as Becky said, copy and paste from MS Word carries over all sorts of extraneous format coding. I usually copy/paste into notepad in order to strip out that coding and then copy/paste the raw text into Joomla. Once you figure out all these little nuances, it's quite easy to update the Joomla site.

I also maintain a html-based web site. Both have their pros and cons.

Cheers, S. in Seattle