Unfortunately, although Black had the potential of being cooler with the 'futuristic' theme, they made the mistake of making everything puke-ugly blue.
lol, they probably figured that blue is appealing to the masses, which it is. I know I love blue, and along with white and shades of grey you generally see it a lot in "future" type settings.
I love the futuristic version of the city. I really can't wait to see how they pull off the version in the third title. Whether it's a combination of the two or a brand new looking place... should be awesome.