There are preferred rooms in 50's, 60's, 70's and maybe some 90's, but not really sure about that one. The only difference is the distance to the food court/bus stops.
I have stayed at POP many times. My favorite room??? 4441...60's bldg 4, fourth floor, facing the lake. It's about as far away from a preferred room as you can get, but it's only a 4 min walk to the food court. I have been in bldg 2 of 50's, way the heck at the very back of the bldg, on the third floor..but it was less than 5 mins to the food court.
A year ago, I decided to book a preferred room. We got the 70's area, bldg 10, ground floor. I hated it. Yes, it was convenient. But there was a ton of foot traffic at all times. People constantly walking by our room. Drove me nuts. I'm going down in again in Dec and I booked a standard room again.
We stayed in this same general area, 60s building, 4th floor facing the lake. It was the same distance from the main building, buses and food court as the preferred rooms only it did not face the pool. I never wanted to face the pool because of the noise and foot traffic. This is the same area we have requested for our trip in January.

