Oh yeah, I was assuming you meant a single-winner system. Single-winner STV is the same as IRV.
I don't see a big improvement of IRV over first past the post. I think Approval would be better. IRV tends towards candidates with intense support among the few, whereas Condorcet and Approval favour candidates with broad support, the "everybody's second choice" candidates (that are the first to be eliminated by IRV).
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I don't see a big improvement of IRV over first past the post. I think Approval would be better. IRV tends towards candidates with intense support among the few, whereas Condorcet and Approval favour candidates with broad support, the "everybody's second choice" candidates (that are the first to be eliminated by IRV).