SYD is a good one too.
Despite a number of flights landing at one time, SYD is a great lounge, the best EK Lounge staff I have encountered by far, great food and selection of booze.
DXB T3 is great - only for the smoking section, you are treated human and even have drinks and small selection of food there.
I am currently in the CIP Lounge in Karachi - waiting for EK607 - I must say I am impressed - although not exclusive to EK, its surprisingly clean and facilities are way over what you would expect!
I am liking the EK lounge at LHR, love the fact that you can board from the lounge now....
I digress - SYD gets my vote.