I have to say that the new DL CRC at Lindbergh Field is great! Very intimate, but stylish and high-tech (internet access, flat screen monitors, etc). They now have a liquor license as well...(they opened ahead of schedule and didn't serve liquor for a few days). Close to gates too.
I like the RCC at LAX too, but not the CASH bar. The Admirals club at MIA is great, except the CASH bar too.