Incheon Airport, Korea

If you are ever travelling to Asia I highly recommend using Korean Airlines if for no other reason than the airort here in Seoul. There is a mini-hotel (which I haven't actually used), free wi-fi, shopping, restaurants, lounge areas, spa, free showers, and computers to use. Perhaps the best feature for anyone wih kids is the playroom. It's awesome and perfect for getting rid of excess energy in between flights. I will connect through this airport every chance I get.