Necropolis or Castle (Which one is stronger?)

Actually, I prefer Necropolis against everyone except Chaos (where nature dominates) and Haven (where barbarians dominate, and they have the best tactical approach).

What don't you like about Necropolis against Chaos... there's plenty of room for vampires and ghosts... the only exception is ifrits, but... it's not as bad as it seems... (sorry for the off-topic).