Personally we really like the Preferred rooms in the 60's section as they are close to Generation Gap bridge which offers the option to easily visit Art of Animation. AoA has a great food court and since the Pop and AoA bus stops are normally right next to each other at the parks, there is also an opportunity to hop in whichever line is shorter.
Really all of the Preferred rooms are relatively close to Classic Hall and the buses so you can't go wrong. Looking at the map below, the Preferred Rooms are indicated with a yellow line.
I would recommend requesting the Standard Rooms in either the 60's or 70's sections as these are close to Classic Hall and the buses. Some of the other sections have close Standard rooms but some of them are also a bit of a walk. We stayed in one of the furthest rooms from CH and the buses in January and at the end of a long day in the park it felt VERY far away.
Here's a map that might help each of you.
View attachment 319366