I am using Joomla because the large user base, and the additional components get updated constantly. Their forum is also very active which you can find lots of information.
if you want mediocre site with limited expandibility and customization then go with Joomla, otherwise go with Drupal or a custom CMS.
Mambo is my favorite. Vivvo is also a great CMS script, but the menu management is its weakness. For example, you can't modify the order of menu item
did anybody try subdreamer? I would recommend to all those looking for complete need of not just CMS but integration with forums: a common login for all the pages! Try Subdreamer CMS.
I had tired subdreamer. I don't know what I can do with it. As to forum, the forum of subdreamer is also Powered by vBulletin
The OP has already chosen what to use, but if anyone else wants to know, I'll place another vote for Joomla. (Joomla and Drupal are my favorite CMS systems). - Edward 602
Lol It seems this topic will never stop. Thank you for all the help but i have chosen to go with joomla it seems to have a good extensions and customization ability.