There is no top hat breed, Polish and some of the other crested breeds are sometimes referred to as top hats.
Crested breeds like
Polish, Crevecoeurs,Sultans, Houdans, and Spitzhaubens
are more prone to aerial attacks by predators because they cannot see as well as non crested breeds. If you have an insulated coop, weather should not be a factor in keeping these birds, however these breeds are going to be less cold tolerant than a large heavily feathered dual purpose breed.