
1. 'Menu' system in Joomla could be managed in administrator mode. Also, a few of transmenu from third parties. So, lets start a group to develop a menu module which could be have ways to show in horizontal or vertical with dropdownlist or transmenu features.
2. Multilingual, xlanguage in XOOPS is better, IMHO, additional language by using joomfish can only be maintained by administrator. I will suggest joomla to have a modules like xlanguage.
3. module upgrade, XOOPS is best, the flow is designed carefully and best of best that all CMS should study.
4. joomla components are lack of themes selection. webmaster have to change coding of .php files but easy still.
5. XOOPS site themes is limited in core, coding built on left, right, centerleft, centerright. It is not free for managing places. e.g. top or bottom of header for a transmenu. Well, joomla is good enough. That is why some devs doing transmenu for them.
6. Search, XOOPS provided a way for modules to join and use the core search, so that no separated search needed. However, for some specified modules, a detail specified search may be necessary like shopping and forum.
7. XOOPS makes use smarty where we have to put a lot of data in array. Well, it is not using passby reference to template. Loading crisis will exist if you 're going to make a hot site. Joomla makes use php as php is a template itself. (more disscusion about this could be found in forum and post there if you wanted.

So, a few points to make this thead useful.
