Anyone use Joomla CMS or know how it stacks up with GL?
Honestly, it depends upon what kind of site you aim to create. Blog site, Photo Gallery, Personal site, business site, single user/author, group site, multi-user blog site, etc. There are many different tools to create different type of sites. Don't let anyone tell you that system X is better or worse that system Y. They all have their strengths and weaknesses, it just depends upon which strengths and weaknesses are important to you for that given site.
Personally, I've found it valuable to become at least relatively familiar with the following (in no particular order :wink
Drupal, Wordpress, Joomla!, and since this
is a geeklog forum, Geeklog!
Synergy - Stability - Style --- Visit us at glfusion.org