I cannot believe that Virgin Atlantic & some US carriers have been going on about this for so long. It is just a marketing slogan from the '80s! If you are going to chose an airline bcause they say they are "The Worlds Favorite Airline" then I have a bridge in Brooklyn that I would like to sell you!
This is so stupid. The UK commision for standards is advertising has ruled in favor of BA being able to continue to use the phrase but I just think it is increadibly stupid that it went even that far. Increadable!