Changi, Singapore and SFO rated as world's best

According to the latest issue of Dwell Magazine has rated Changi Airport in Singapore as the best in the world.

It woos the common traveler who may be stuck here for a few hours ... thanks to a straightforward design that incorporates open-air spaces, including rooftop terraces and an out-
door swimming pool. Its atrium-like
 terminals are lush with indoor tropical
gardens that exhibit botanical thought-fulness. ... Ultimately, however, the vines, tasteful wood trim, and 
warm tones help offset the coldness commonly found in international 
hubs. A 24-hour cinema, spa, showers, children’s play areas, and free Internet service provide the means to kill 
time or freshen up before the next 
leg of your trip.

While San Francisco Airport gets the nod as best US airport:

SFO makes a big impression on those approaching by car or aboard the airport’s nifty AirTrains. The terminal elevates expectations with its sweeping, winglike roof and custom lettering oozing cosmopolitan style. The feeling doesn’t dissipate indoors, either. The concourse is a light and airy space—–
if a bit oversized for current traffic levels—–that hums quietly and instills confidence and calm in the traveler. International food vendors afford 
nontravelers quality good-bye time; security checks operate smoothly; 
and there are no pretzel-like corridors to get lost in. Waylaid travelers can busy themselves with an aquarium, 
an aviation museum, thoughtful art and culture exhibits, spa treatments, quality restaurants, and wireless Inter-
net. Convenient metro rail services connect the terminal to the city.