If you use preferential voting you don’t need separate primaries, so it would save a lot of money.
]]>For what it’s worth, FPTP is the most common system in America, too, and here, too, it is favored by candidates who couldn’t get a legitimate majority if their lives depended on it. At least Preferential/Alternative/IR voting* has a reasonable chance in single-winner, multi-candidate races of reflecting something like the will of the people. FPTP is almost guaranteed NOT to produce that result if there are three or more candidates.
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* (I hate the term “instant runoff voting,” but that is a fairly common usage you need to look for if you’re searching the web.)