IRV is "A Fairer Way to Conduct Single-Winner Elections". It's not immediately applicable to multi-winner elections. If you have a hundred ballots, each with somewhere between 1 and 23 ranked candidates, how do you eliminate one candidate per round?
I think we should ulmitately go to Condorcet or something, but even normal Condorcet is for single-winner. Which systems are best for multi-winner elections?