Rec for the best ob/gyn affiliated with the best hospital :)

Hi ladies, I am visiting from the TTC board. I am so new to this and am currently in the process of finding a new ob/gyn and I'd like to find someone affiliated with a very good hospital- both are equally as important to me.

I'd love it if you ladies can throw some recommendations my way. My preference is Manhattan or Nassau County. Thanks in advance and good luck for the rest of your pregnancies