Which units (BASED ON THEIR APPEARANCE) in the Haven castle do you dislike?

Militia. They have no place in a castle. And they are of absolutely no use on the battlefield. This is "Heroes," not "Age of Empires."

I agree. Peasants and militia are of no use (except for the gold from "Tax Collector")! They look more like overfed nobles than workers! Also, griffons are not very good.