I would love to see more moderation in the adversarial system. Make the judge and jury an inquisitor of sorts, empowered to ask directed questions to the parties involved in a lawsuit or criminal case, although in a criminal case the defense doesn't have to answer and can still assert the 5th amendment. A judge, and even the jury itself, should be able to ask questions if they feel there are relevant issues or viewpoints that are not being presented properly to the jury.
"Think about it a little more and you'll agree with me, because you're smart and I'm right." --Charlie Munger
Dreams and schemes and circus crowds...