Maybe we can make an airport ranking thread. Is there a worse airport in terms of MWG (Miles of Walking to Gate) than LHR?
I haven't been to LHR in decades (since BA started going crazy with fuel surcharges on mileage redemptions). But IIRC that's not the only issue there. There are the buses for connections that require terminal changes.
Otherwise, YYZ used to be high on that list. I'm not sure if there's anything worse than IST in that aspect nowadays. It could be a 20-30 minute BRISK walk!
IIRC my one experience connecting at CLT was also quite horrendous (but that might also be an AAirline effect, funny how they have that kind of experience in various hubs - MIA also comes to mind).
There are also two separate issues: Curbside to gate, and walking required for connections (especially international).