Never mind the exteriors, the interiors are horrible! I recently flew 4 HP flights. The first, JFK-PHX was on a brand new A320, which had a comfortable, clean new interior. Although I despise Airbus, this plane really was cherry. My second flight was PHX-SJC on 737-300 N172AW. Although this a/c was in the new color scheme, the interior was quite old and tatty. It was filthy. cramped, and shabby. Flight 3, SJC-LAS was on N174AW, which duplicated my earlier experience on her sister ship. My final flight, LAS-JFK was on 757 N908AW, which was newly painted in the special Arizona Cardinals livery. While I was pleased to log this unique a/c, the aircraft's interior was dissapointingly reminiscent of the 737-300s, although I must admit it was much cleaner. In the three older aircraft, each seat back had individual monitors that did not work. In fact, none worked on any of the aircraft! HP urgently needs to upgrade these dated interiors. While my 733 flights were empty(SJC-LAS only had about 15 pax), the 757 was fully loaded. What a terrible experience to be crammed between two large people ona red eye flight with a crappy movie, no food, and surly flight attendants(2 hrs. late, of course).