There's a simulated comparison of the practical perfomance of several different voting systems at http://zesty.ca/voting/sim http://zesty.ca/voting/sim. It loo

There's a simulated comparison of the practical perfomance of several different voting systems at http://zesty.ca/voting/sim http://zesty.ca/voting/sim. It looks like approval and ranked voting fare the best, with approval being more likely to get voters to express their true preferences (IIRC).