I have only used Joomla and phpNuke and I have to say that I liked Joomla far more. It has so many features and you can change almost anything about the look of you site.
It is also the most popular (I think) so there are lots of mods and themes available to buy or for free.
I think joomla is quite user frinedly and very simple to use in comparison to others that are available. I have tried a couple of others but would highly recommend it anyone who has not yet tried it.
I know it's for bloggers, but with the huge support community, an ever-increasing number of plugins, and with the existence of multi-user WP, it could definitely compete against all of the listed CMS's. If I had to offer a second vote, it would be Drupal because of the ability to customize content types and views.
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