Did somebody already mention on this thread the time of day of the occurrence?
Just having traveled as pax to a number of destinations in the US (LHR to Wash.Dulles to Austin TX to Wash Dulles to Orlando to Phila to NEWARK and back to LHR), at certain times of day both at Dulles and Philadelphia it is a ZOO out there! We taxied in a regional jet for 50 minutes for a 20 minute hop to Newark! And I noticed that all too often it is necessary for ATC to direct taxying aircraft across active runways.....
Add to the mix pilots for whom English as she is spoke in the colonies is not their first language, it is truly wonderful that the system works at all!
Anyway, for sheer beauty of design and comfort and security people who are efficient yet polite, give me Orlando any day.