Emirates has most of the time the best jet for the route, Before the 777-200lrs came we could only do sydney direct with the 345s, and also NYC with 345s before the 773ers came.No EK wants to dump the 345s as they are not effecient enought only 250pax or so.
The 380 has lost of seats for places we have limited slots , but again we are waiting for the 747800s
These guys plan ahead , they are political but also well orginised and the aircraft is the best one for that route it flies..