Suggest one bank that you admire in the industry and state a good quality it possesses. Then counter that with saying the bank you are interviewing at also has this great quality, and might even be better. An example: "Goldman has a well known and highly respected corporate culture and teamwork philosophy. However, [Insert Bank] has exactly that but after talking to employees at the bank, I'm convinced that the level of teamwork and culture here are very strong, and probably a better fit for me."