Any ideas on which I should join: Admiral's Club, Red Carpet Club or Presidents Club? The airports I'll be in most often are Tokyo Narita, Dallas, Chicago, Hong Kong and Nashville. If I join one of the programs, I don't have to fly that airline to use the club, right? I like the free alcoholic drink thing, which I believe all three airlines provide at the overseas airports. I've been told that Continental's Presidents Club membership would get me into more lounges in more cities.

Sorry if this is the wrong forum to post this in.

Thanks!