Hallo, here is an interesting paper by Ron Rivest:
http://people.csail.mit.edu/rivest/RivestShen-AnOptimalSingleWinnerPreferentialVotingSystemBasedOnGameTheory.pdf He gets to the conclusion that the Schulze method is "nearly perfect" (page 12). Markus Schulze ---- Election-Methods mailing list - see http://electorama.com/em for list info
