I've sat in the car park at the Burger King (just around the corner from The Marriott Hotel at LAX) and enjoyed eating a burger and taking in the excellent views of all kinds of aircraft coming in from the East to land at LAX. They're close enough to get a great view and to hear the engines etc as they are just above touch down level as they pass the restaurant. If you like to watch landing aircraft, especially a fair share of 747's then that's a good spot to stop off for a burger and shake!