What is the biggest bank in NYC?

Could you elaborate on what you mean by the "biggest bank" in NYC? Are you referring to the bank with the largest assets, the highest market capitalization, or perhaps the one with the most branches or customers? Additionally, are there any specific criteria you're looking for, such as the bank's reputation, financial stability, or its involvement in the local community? It would be helpful to have a clearer understanding of your question so I can provide a more accurate answer.