i have 7 hrs to kill in ORD. i will NOT be leaving the airport.

given the choice, would you kill the time in (multiple choice):
A. dl sky club
B. aa admirals club
C. united club (and if so, which one...)

please notice "none of the above" is not an option! ha

thanks for the advice, and, again, i will NOT be going into the city or leaving the airport,
cb