The "YN model" - a simple voting model in which range voting behaves optimally while many competing voting systems (including Condorcet) can behave pessimally:
http://rangevoting.org/PuzzAggreg.html -- Warren D. Smith http://RangeVoting.org <-- add your endorsement (by clicking "endorse" as 1st step) and math.temple.edu/~wds/homepage/works.html ---- Election-Methods mailing list - see http://electorama.com/em for list info
