The BC resort is completely booked almost every week of the year.

It is a very popular resort. Your week is no different than just about every week of the year. We have been there in January and it is still sold out. We have stayed there at least twenty times over the years and the resort has never felt crowded. You sometimes get a morning rush at the Marketplace for breakfast. And once in awhile everyone decides to go to the main pool on the same afternoon, and you can encounter a large crowd of people waiting for their table at Cape May to open for their dinner ADR, but a capacity crowd is normal.

The BC holds a lot less rooms than a value resort does, so you won't encounter as many people at the BC as you would at a value or moderate resort.
The BC is a wonderful resort. I hate to think that you will switch to a moderate or value over something that doesn't exist.