Ok - straight to the controversy! For me my three top airports are... HKG and SYD QF DOM and SYD QF INT.
Now don't get stroppy about SYD - I do have reasons... First DOM - I fly through it so often I know it like the back of my hand. I generally have success in Premium Boarding have very few delays (vs. MEL where I have had some more significant delays). I have a driver that picks me up on time so I don't suffer SYD parking issues. I never have luggage so never have luggage issues and they were very helpful to my wife when she was travelling without me. SYD DOM just works for me.
SYD INT - sure there can be queues coming back into SYD but leaving SYD is just a dream - QF F check in - smooth as silk, express immigration and security - might not be that much faster but it feels faster and then of course there is the F lounge.
HKG - just because it is the best, most efficient, simple, effective, airy and wonderful - and I haven't even been to the new Wing F lounge.
Worst
Poznan in Poland - Cigarette capital of Poland
Warsaw - marginally worse than Poznan - especially factoring the customs officer with his hand up some girls skirt at the customs desk
LHR T3 - it carphole of carpfulness - dingy low ceilings, the queues - my god the queues!
JED - words fail me
AMM - Makes LHR T3 look like an oasis of brilliance
BTW that link takes you to the top airlines rather than airports...
http://www.worldairportawards.com/Awards_2013/top100.htm