That's because MAMPO starts out about an Approval majority and then goes to a pairwise method; while MDDA starts out about a pairwise majority, then goes to Approval.
So, as another two-part method, I wouldn't say that MAMPO is more complicated than MDDA or MDDB. So, if it adds Plurality compliance, that's a free bonus. Mike Ossipoff ---- election-methods mailing list - see http://electorama.com/em for list info
