International Air Transport Association (IATA) has named Dubai as the world's favorite airport in a new passenger survey. This is the second year in succession that it has been rated top in overall passenger satisfaction. Singapore's Changi airport was in second place. The world's busiest airports did not rate well with passengers. Atlanta Hartsfield. and Chicago O'Hare in the US; London Heathrow and Haneda in Tokyo all failed to make the leading group. Canada's Vancouver International scored best in North America while Copenhagen was the European leader.