Gotham is the only city that really feels like a character on its own at times. Although its inconsistent as hell, when its portrayed right its just so fitting.
Also yeah... a lot of the other cities are just all kinda similar. I mean each one has notable locations but they all just feel like more New Yorks. Like even Bludhaven at least is meant to be like a cross between the crime filled streets of Gotham and the not so bad Metropolis. The crime generally occurs even at early night lol.