Actually, when it comes to "teaching", I imagine only the Jews surpass the more traditional CoC's. (I think the stricter ones are called "Doctrinally Sound" congregations, these days. Not that they necessarily have correct interpretations of scripture, but they sure do know the written word, (mainly NT) inside, out.Hope they teach some of the beatitudes ... maybe a parable...A sunday school lesson on Noahs ark .. The Resurrection of Christ.
When I was there, the heavy hitters were known as "Anti's" (because they were against just about everything you might care to name), and they prided themselves on having the unofficial nickname of, "Modern Day Pharisees".