Here’s some qualitative data on LMS usage and opinions by a pretty good sample of students and instructors at Carleton College in Canada. The survey by the LMS Support team was designed to compare Desire to Learn, Moodle, and Blackboard 9 to WebCT.
One interesting graph (there are plenty) is a 10 point scale grade instructors and students were asked to post based on this criteria:
LMS Grade out of 10 If you could give a grade out of ten (ten being perfect) to WebCT and the LMS you trailed, what grade would you give each system?
Results in bar graph form:
You can read the full survey and results (with analysis) at http://www2.carleton.ca/lmssupport/trial/surveys-and-results/lms-trial-winter-2011-results/. There are some great stats available.