Well, I know for a fact that Supa and Bear have seen anime that I haven't, although I don't know what their total numbers look like...
As for my observations, nothing groundbreaking yet, but looking at Lunatic's past games it's pretty safe to say he chooses roles based on fairly prominent traits, and considering my character, that lines up.
As for theme split, no way to say for sure, but knowing lunatic it will be a pain to guess correctly.
I've actually talked with Lunatic about anime some, though. I know he's seen Dragonball Z, (I think) My Hero Academia, Attack on Titan, and an anime called Berserk I've never seen.