>>469883>it destroys the idea of a "wasted vote." It doesn't quite accomplish that, sadly. That's a piece of idealized propaganda commonly pushed by advocates like FairVote, but in reality IRV manifests the phenomenon of vote splitting similarly to plurality voting. In fact, is it often not safe for a voter to order candidates sincerely with IRV, especially when the underdog candidate actually has a chance of winning. Just like with plurality voting, the presence of more than two competitive options forces the voter into a situation where they have to abandon their preferred option to protect the lesser-evil option from losing. Here's a good video illustrating why this happens. It turns out in fact that this scenario arise so often that it's probably the main reason that every country and municipality that has used IRV for single-winner elections has remained locked in a system of two-party domination in its representative bodies. This includes use in Ireland, Malta, Fiji, and Australia. The example of Australia is especially illustrative because Australia has one chamber of legislature (their Senate) that uses the multi-winner proportional variant of IRV, single transferable vote, that actually does result in broad multi-party representation. Yet in spite of real third party representation in order parts of government which should nurture the strength and longevity of third parties, the Australian House which has used IRV for over 100 years has remained dominated by two parties for nearly the entirety of that time. In fact in every Australian House election the candidates and parties always send out these elaborate how-to-vote cards instructing their supports on the best way to vote tactically.
>I'd prefer it to the current system we have here in the US - why wouldn't I?To put it bluntly, IRV basically functions as the Trojan Horse of Alternative Voting Methods. It's an overly complicated voting method which
doesn't get third parties elected in practice while simultaneously bringing new pathologies of its own that can sometimes upset voters enough that they repeal it and return to the even worse plurality voting. The 2009 Burlington, Vermont mayoral election is a good case study. Meanwhile the well has been poisoned ("We tried alternative voting methods, they don't work!") and people cynically from on from the idea of effective reform without trying out far superior alternatives like Approval, Score, and STAR voting.