From my experience this year, T2 appears to have the worst and most disorganised security queues.
The recent change into 3 lanes of security is also unwelcome change.
There is now "normal", " Fastrack" - this is only available to those who pay extra & then there is " priority"
As a business class passenger on EK recently (T1), the check in staff advised me that Fast track is not available to business class, it is only by paid ticket. He also suggested avoid the priority lane, which I could use for free, as you will be stuck behind wheelchairs and pushchairs. Much quicker to go via the standard channel I was informed.
As a passenger paying premium fares, I was hardly very chuffed at this new money making MAG arrangement.
Surely the aim of the airport should be to process all passengers quickly and efficiently without the need for any priority lines at all ?
As for T3- don't get me started. the fact that the whole terminal is brought to a standstill when a BA shuttle disembarks beggars belief.