My state provides judicial performance reports for each and every judge per judicial body. They are based on surveys responses from attorneys, peer judges/justices, jurors, witnesses, etc. They score legal ability, integrity, communication skills, judicial temperament, administrative performance, settlement performance, etc. The scores are Superior, Very Good, Satisfactory, Poor, or Unacceptable. It gets pretty in-depth. They also provide judge biographies and history.

We usually have a big voting party with some cordial friends and go through the performance reports together on our mail in ballots.