CDG: Well when quiet, it is all right. And its concept is good. BUT it is seldom quiet. And busy, yes, it is a nightmare. This includes 2E & F and AF lounges.
AMS is OK provided you don’t have to go from one end to the other when connecting…
LOS is probably one of the worst. I am sire they are plenty of other terrible ones, but I didn’t have the “chance” to visit them 🙂
HKG: was there a couple of weeks ago. While it is no more surprisingly great and new, it remains IMV great! My favourite feature? In-town check-in!
In the US, ATL is impressive taking into consideration it is one of the busiest airport in the world, probably thanks to its structure.