thinking about it, it may be that Range Voting (and its variants) is the ONLY FBC-obeying voting method which is immune to candidate-cloning (with voters assumed to have slight preferences among the clones) and disregarding non-deterministic election methods.
That would be a very interesting theorem. I wonder if it is true. Note that it is essential here that the score range be a CONTINUUM. Range voting with discrete score set like {1,2,3,4,5} is vulnerable to cloning if the voters decie to non-equally score clones, but with continuum scores with the voters assumes to make arbitrarily small score perturbations, range is generically immune. wds ---- election-methods mailing list - see http://electorama.com/em for list info