Like
Instant Runoff, Approval Voting aims to identify the most widely-accepted candidate (which usually tends to be a centrist candidate). But approval voting may do an even better job.
Instant Runoff Voting
Instant Runoff Voting is used in many city and state elections around the country, with great effect, It’s used in many international elections, as well. When it comes to indigestible electioneering, Instant Runoff is the bromide.