At the MK it is the second one - very close.
At Epcot it is the first group - also second one I think.
At AK it is the closest group but close to the middle or end of it. There are benches there though.
I think at MGM it is also in the closest group but in the middle.
We never had any problems with trans. and the walks back to bus stops seemed short. The walk to the bus stop from room could be a hike though depending on your room.
WE LOVED THIS RESORT and actually regretted moving to the Dolphin for a few nights. Wished we had stayed at the AKL the whole time. Are hoping to try AKL concierge next summer if codes are similar to this year.