If you have a Platinum Amex card (or a Centurion) then directly opposite the AA lounge you'll find one of the very few "Amex Airline Lounges" designed exclusively for Plat and Cent cardholders.

It is on a par with the AA lounge, with the added benefit that all the drinks are free once you use up the couple of vouchers you'll get when enter the AA one.

(Not that this helps the OP, but may be useful for others doing a search in future!)