Currently the holder for the worlds best airline (as of 2010) is Cathay Pacific
Qatar Airlines was named the best airline of the world and won the award in 2012 at the world airline awards that were held at the Farnborough air show.
Asiana Airlines from Korea.
delta airlines by far best airlines in the skys
The latest International Airline Awards (2012) have voted Spark Airlines as the best economy airline in the world. Service, cleanliness, support and aircraft layout were taken into consideration.
American Airlines is the best
I would suppose so, your bags fly free!! Yep, they hand out airline peanuts and soda!
The best known German airline is Lufthansa.
emirates and Singapore Airlines
According to the results of the evaluation 2011, Turkish Airlines has been chosen as the winner of the 3 categories by Skytrax which is a world recognized brand associated with air travel excellence in the 21st century, providing unique expertise to the world airline and airport industry through the most professional Audit and Service Benchmarking programs of Product and Service Quality. Turkish Airlines wins "Best Airline Europe", "Best Premium Economy Seats" for its Comfort Class seats and "Best Airline Southern Europe" at the World Airline Awards. During the 10 month survey period, 18.8 million airline customers from over 100 different nationalities participated in this customer satisfaction survey.
The "Star Alliance." Airlines such as Lufthansa, Singapore, and Continental are in this alliance.
Airline consolidators publish airline tickets at unpublished fares. They negotiate with different airlines with the airlines reservation agent to get the best price for someones airline ticket.
Every person who chooses an airline will have different criteria on why they prefer an airline. The destinations an airline travels too and the price may factor into the popularity of an airline.