I’d like to see a “none of the above” option on election ballots.

If “none of the above” wins a plurality, then cancel the election results and hold another election two months later: one month for the parties to choose new nominees and another month for the nominees to campaign. (And postpone the eventual winner’s swearing-in by two months, of course.)

This system may be cumbersome, but it may lead to a better expression of the people’s will than electing the lesser of two (or more) evils.