Here are 2 differences between MAM & Schulze: 1. In at least 2 simulation studies, independent of each other, when MAM & Schulze choose differently, the MAM winner pairbeats the Schulze winner at least several times as often than vice-versa. 2. MAM is the pairwise-count method that never unnecessarily disregards a voted public preference (pairwise defeat). Here's what MAM says: A defeat is affirmed if it isn't the weakest defeat in a cycle whose other defeats are affirmed. A candidate wins if s/he doesn't have an affirmed defeat. (end of definition) Because Schulze differs from MAM by unnecessarily disregarding a voted public preference, it's no surprise when people prefer the MAM winner to the Schulze winner. Michael Ossipoff