We've only stayed once but I liked the area we ended up in, though I don't think it's all that popular.
We were in Building 70, in The Carousel area, room 7330 (I still have the room alert text)
It was the second bus stop, which was great for heading to the parks and coming back. We never had a full bus but I can tell you a few mornings we had to pass the last stop (in the preferred area) due to the bus being full
Our building was directly across from the bus stop. And we could take the bus a couple of stops further and get off for the Carriage House but it was also not a far walk right down the main road. They also had golf carts there to drive guests back too.
ETA - The best I remember the first stop was The Grandstand, next was The Carousel. I believe Congress Park was last but I am not positive about the order after we got on/off. I just know the came in and went to Grandstand first and us next.