Qatar Airways is probably the best airline I have flown with. We often fly this route, and always choose whichever airline offers the lowest price. This time it happened to be Qatar Airways, and after being a bit hesitant at first, we did our research and found that the airline is one of the world's five-star airlines according to Skytrax. And we were not disappointed. For offering the best price (BY FAR) on this itinerary, the airline also had the best service and cleanest aircraft. Great food and entertainment. Doha airport is, however, a bit under-sized for the amount of passengers it handles, but this should change when the NDIA opens. Will be sad to see the old airport go though - it had its charm :)