[EM] median rating / lower quartile

[Forest Simmons]

I would just like to point out that median rating is to range voting as 
Bucklin is to Borda.

This was noted back in the days when we first considered Majority Choice 
Approval (Bucklin based on CR ballots of resolution 3), and were exploring 
to see if there might be any fruitful generalization to higher resolution 
CR ballots.

Since "Social Utility" is not a method, but is one probe for gauging a 
method, why not publish both Mean SU, and Median SU, as well as standard 
deviations and interquartile distances for the performance of various 
methods in simulations?

Forest