i agreed joomla is good... but personnaly i prefer drupal, wordpress n textpattern.. i have been playing around with so many CMS, n nothin came close to those three..

Joomla is user friendly, but if you want to have a very customized look n feel, it quit limited with joomla..that's why most of joomla site you can tell it from its look..

drupal is in the other hand very customizable.. but some times too many functions just didn't do it..

so depends on situation, u may have to use less complicated CMS such as wordpress or textpattern