Herman was even described as having "the mind of a child" in one of the episodes. The plots often revolved about some childish scheme that Lily tried to put a stop to.

MwC was definitely the oafish husband, again with the childish schemes, much like Ralph in the Honeymooners. It's just a raunchy version of the Honeymooners.

ILL is a rare exception - a reverse Honeymooners.

P.S. I still enjoy watching these shows. Especially the Munsters. Herman always makes me laugh.