I prefer Mayim over Ken. She generates excitement about the players and their game, while Ken interjects himself as though he were teaching a master class. There’s a cockiness to his conflating superficial mastery of both the periodic table and soap opera stars with a true polymath like Da Vinci. Making it so much about him detracts and diminishes the game at hand. Plus, his constant hint of a sneer gives him the perfect face for radio.