I nominate Kilimanjaro International Airport outside Arusha, Tanzania, as one of the worst.
Kigali International in Kigali, Rwanda, is not a garden spot, either, although Kigali City is a vibrant, booming city since the genocide ended.
Amsterdam Schipol is one of the best.
Detroit International Airport is beautiful now - go figure.
Midway Airport in Chicago has been renovated and really does not deserve to be on the list. The International Terminal at ORD Chicago is dismal and should be on the list.
Midway has a nice food court. It's not that bad.
Candidates for worse than Midway: some PHX terminals, plus it is 1.5 miles from end to end of PHX; San Antonio is cramped, Dulles, Miami.
I’m with you on Midway. When I noticed that they were listed I couldn’t believe it. I have used that airport fifty times and I can’t think of anything bad about it.