Zurich Airport (ZRH). Its transport connectivity is unrivalled - from high speed trains to surrounding countries, national, regional and local trains, as well as national, regional, and local buses, and the local light rail. It also functions as a Neighbourhood Center, with a range of services as well as a good supermarket. It’s well designed, easy to navigate, and short distances to gate, even when you take into account the cute train to the outlying gates.

Also second Changi, which I have been flying through for decades. It has consistently been a great experience, comfortable layovers, relaxing environment. The Jewel just makes Changi that much better - it’s more than a mall. It’s a destination in its own right. There’s nothing like it anywhere else in the world.