CMS (Course Management System) Recommendation

Guess not the right place to post this, but seeing I use php and looking at opensource.....

I need to decide on a free open source course management system

so far everything points to moodle, but thought I'd ask around if any of you got experience with CMS's and can recommend sth else.?

I have never used these systems but this seems to be quite a comprehensive comparison tool: http://www.edutools.info/item_list.jsp?pj=4

In the future, I will be using efront