@JRMFL @John_Scotus
The problem is that a lot of them have strong negatives. You don't want to motivate apathetic voters to get off their couches to come vote against them. Hillary was one of the most qualified candidates ever, but a lot of people didn't like her. If we had ranked choice voting, then you'd want as many in the primary as possible, but as it is, a field of good people will split the majority of the vote and the crazy candidate will win with the crazy 10% of the voters.