Which LMS do you use and why?

I've used six different LMS over the years. These six are
1) Moodle
Moodle is a great tool that I would recommend to most people. It takes some pills and time to read into manuals etc. but works really well when you understand it. 

2) Saba
Unnecessarily large program that has a lot of features most people probably do not use.
Would argue that they have some problems with the SCORM object so I feel that reading (of statistics) is not always true.

3) Ping Pong
One of the best LMS I have experienced. Easy to understand, always works whatever you throw in. Superb support. Probably a little bad on discussion forums but you can not have everything.

4) It's learning
AVOID !!!! AVOID !!!! AVOID !!! How can people like this fucking garbage  is well beyond me. The statistics feature is completely off the wall and I had to reprogram together a custom solution in Excel to make it work. Surprised that the company still lives. 

5) Fronts
OK. Do their job

6) Foxshare
very nice LMS that works just fine in its time.
Was unfortunately acquired by NE (Nationalencyklopedin) to put down the development.
Do not know if you can get it anymore.Possible to the source code available to obtain.