The only thing I can add to this thread is that the N Club is usually only crowded until the Tokyo departure around 1:00 p.m.unless there are irrops someplace else in the system. The staff at both clubs are good. I agree that you should go to the club closest to your flight gate as it is quite a trek to go between clubs and terminals, even with the train. That being said, the former CO flights to EWR usually depart from the B terminal.