A West is closed. B/C is the only open large club and gets very crowded now. I haven't been since the 11/1 boarding pass requirement kicked in.
A East and F have small clubs. Only use them if you are departing from one of those terminals, and B/C may still be a better option for A East departures if you don't mind a 5 minute walk past the movie posters (from the B side elevators).