AirNoServicesAustralia
Heh I have been flying both Boeing and Airbus into Dubai for the last 15 years and frequently since EK got their 330's. You complain about them slowing to 250kts at 10,000ft so far out. As mentioned above it is the result of a very efficient airframe, probably the most efficient available today. Therefore there is a simple solution, change the requirement to slowdown at 10,000ft to slowing down at a specific distance from the airport. That will keep everyone on a common footing and the flatter profile of the more efficient 330 (the 340) and other future aircraft will be catered for.
As a current operator of the 343, I am not sure that the 345 & 346 will have any great improvement in performance. I might be wrong but it is my understanding the the new versions are built for efficiency and at 100 tons heavier MTOW and having to fullfil the same performance requirements as other quads then the extra power is required to achieve the higher MTOW.
I also aggree with the previous comment about it being time for Boeing to wake up and have a serious look at their product. With 7000plus hours on various Boeings and another 8000plus on Airbus 320/340 I believe Boeing need to modernise ASAP. Don't get me wrong, BOTH manufacturers make fine aircraft, its just that with the exception of the 777, all of the Boeings are starting to be rather dated. And there is a comon saying "you can't make strawberry jam from pig!!!!!"
Have a nice day