Interesting article that presents a breakdown of passenger traffic carried by Emirates adn ETIHAD over AMS;
http://www.routesonline.com/news/29/bre ... gn=the-hub
Note that EY's cooperation with KLM leads to significant number of pax using AUH (80%) and AMS (25%) as transfer hubs.
Whereas EK only connects pax at DXB (75%).