Frankfurt had something like and entire shopping mall under the airport. It was pretty neat. Having subway stops was really handy, too. Of course since we don’t use subways or commuter trains in the vast majority of the USA, that’s not really relevant to our airports.
Detroit airport looks like a bus terminal. It’s old and icky. No shopping and not much food in the secured area. There is a new terminal at Detroit, but I’ve not been there yet.
Midway is nice – it’s small and getting to rental cars or public parking is easy. It’s kind of sucky getting to freeways from there, but then again Chicago and suburbs’ freeway system was always kind of lame to me.
O’Hare, in contrast, has great access from the roads, but the damn place is so huge it’s a horrible, horrible hub. For some reason I couldn’t get a direct from Dallas to Detroit flight a few weeks ago, and we had to transfer at O’Hare. It took 45 minutes of walking! There was no train or other transportation we could find, and it was a maze. On the plus side, it’s a beautiful airport.
Dallas is a good hub. It’s so small it’s not a big deal getting from terminal to terminal. Plus there’s a TRAAIN if you’re in a hurry. Good shopping and food in the secured area. Being a smaller internation airport, it’s my favorite for flying back from Mexico – immigration and customs are really, really fast.
Houston is huge but beautiful, and lots of food and shopping in the secured areas. If you’re in a hurry to connect, though, size could be a problem. Coming through customs and immigration has NEVER been a quick thing for me there.
In all cases, there’s no secured smoking area. I think Atlanta had one – I’ve only been there once. Long ago I’ve been to some other cities that had secured smoking areas – Las Vegas does I seem to recall. These are good airports. Oh yeah, in Leon, Mexico, you can smoke anywhere in the airport you want. Backwardness or freedom?
Let me tell you about Ciudad Juarez, Mexico. I once flew from Leon, MX to Cd. Juarez. I was already in the country, so I didn’t think I needed my tourist papers or passport. Come time to return to Leon, we had to clear customs and immigration to “enter Mexico,” and me without papers! Just keep that in mind if you’re ever in the back woods.