John - Scholarly, kept the game moving, but also joined in the laughs too and used his wizardly way with words to confound the panel. My favorite!
Wally - Affable fellow who kept the game moving and let everyone else shine, but didn't leave a lasting impression.
Larry - Laid-back charm, added a more people-friendly vibe, yet didn't try to hog the camera. That seemed to be a good formula standard for an emcee of a celebrity-heavy format. It's a shame we didn't get to see more of that potential.