The podcast is quite long to listen to ... so here is the gist of it. They had something like 17 categories. (It must have been 17 because the judges scores were like 11 to 6.)
They discussed each category and the differences in the two religions and then the judges would give a point to either the JWs or the Mormons for each category. It was quite clever.
Some of the categories were Nature or God, Nature of Jesus, Women, Sex, Education, Hell, End of Times, etc.