I've not stayed at Coronado, but having stayed at CBR, POFQ, and POR, my favorite is POR.
We stayed in a garden view room in one of the Magnolia Bend mansions (not a Royal Room, not preferred). I thought the interior design of the room and the outdoor design/theming/landscaping were beautiful. Even though we did not stay in a preferred room, neither myself or my mother (mid-sixties) found the distance from our room to the food court/lobby to be far.
Never had any issues with transportation - there are multiple bus stops, so you will never need to walk far from your room for a bus. I also really like the option to take the boat to DTD (offered also from POFQ), which is a nice, relaxing break from the buses.
Lastly, I found the food court at POR to be much better (more options, better quality) than those at POFQ or CBR.