What blocks are most popular in my moodle site?

It is at least a semi-interesting question.  Think about all the blocks that moodle has avail.  Lots of them, seemingly more with each release or upgrade.  I browsed down Site Admin| Plugins| Blocks | Manage blocks today and this is what my stats show. 

I managed to get the entire screen visible at once by tweaking the resolution and turning off a couple toolbars.

The number to the right of the block name is the total # of times that block is active in a course. The numbers listed are out of 450 total courses.

Clearly, the most popular blocks are

1. Activities (shows a link to assignments, forums and quizzes)
2. Course overview
3. Messages (short cut to message others)
4. Online users (people who are on-line in real time)
5. People (people enrolled in the course)
6. Recent activity (way for teachers to see what has been submitted recently)

Just interesting data....It should be noted that we pre-set or turn on most of the blocks listed above.  We do encourage our teachers to experiment with other blocks, but I don't think that happens too much.