This is considered by many to be a giant step in the evolution of a new, more serious Batman. In direct opposition of the '66 spoofy Batman, Burton sought to create an art deco city that housed a much more intense Batman than we've seen up to this point. The building blocks are there for Nolan to complete the transition to his masterwork. Nicholson owns the role, if campy and Keaton embraces the role, if a little silly at times.
Burton identified with the gothic and nothing else. His ignorance of the character undoes the film.
The 14 year old me gave it a 10, until he killed the criminal in the belltower. Batman is not a killer.