Lufthansa in Frankfurt. Everything is centralised into one Terminal (Terminal 1), which is then split into three concourses. And if you're lucky your plane won't be at the gate and you have to take a bus across the apron. The terminal is light and airy. All flight information is on a huge board, and there is NO SWTCHING TERMINAL, even for all Star Alliance flights, they also go out of Terminal 1. AND if you are changing airlines the quick and easy tram between the terminals offers spectacular views of the entire field. Speaking of views, on both terminal there is a visitors deck (besucherterasse in German) that you can pay DM5, and get as close to the planes as you can stand. There is also a shop, Fluggie, that sells all the Herpas, well, I think that are made. This airport makes LHR, JFK, BOS, LAX, especially, ATL, and DFW seem like the biggest inconvenience in air travel today.
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