As far as accomondations, I agree all are about the same but that is where the similarity ends. Each resort has its advantages. For example the BCV has an excellent pool. Both BCV and BW are within walking distance to two parks.
At night you can watch the Epcot fire works or rent a boat to watch it from the lake in Epcot. After the fire works it is convient to walk back to your room while everyone else is trying to catch a bus or monarail. And on your walk back you can stop by the piano bar, ice cream palor or ESPN for a night cap. If you have time when you return to your room after visiting another park you can walk to Epcot and hop on a ride or two, (my favorite is test track and soaring), before it closes.
If you frequent DTD and like a quiet resort than SSR has an edge.
It is not negative to prefer one resort over another. Each resort has its advantages, and it depends on your preferences. I for one can't wait until AKLV opens. I think it will be great to look out the room and see the different animals.
Have you stayed at the BW or BCV? If so what did you think of these resorts?