Re: A milestone, surely
As far as I can see, that data is not complete (still very cool), as I cant see data from Iran, Russia, China...
"FlightAware's primary service area includes airspace operated by the United States (including Alaska, Hawaii, Puerto Rico, and Guam), Canada, the Caribbean, Australia, New Zealand, portions of Central America, the United Kingdom, and France. Flights in the primary service area support real time maps, departure and arrival information, delays, and more."
So it is missing most of Europe, all of Africa, South america and Asia.
Still, for such a boeing friendly part of the world, it is quite clear that the a320 has beaten the 737.
The reason for this is quite simple: a 320 has less cost per mile per seat than a 737. It is also more silent and has more space.. but that is not the reason it is winning. It is just cost.