We've stayed at BC once and BWV too many times to count. As a PP said, the walk to Epcot is about the same. We love beating the boat from the B/W dock. But when staying at BWV, we always walk to Hollywood Studios too. The nice pool at BC is kind of a walk from the vacation club villas. But nice places to eat (Cape May, Yachtsman Steakhouse, Captains Grill). And our 2 bedroom there seemed enormous! The deck stretched all the way across. But point-wise, there is only one category.
BWV standard views are good point savers but hard to get at certain times. There is always entertainment on the Boardwalk at night and lots of places to eat. ESPN Club is a big draw, too, but not my thing. The only thing that I can think of with difference in the rooms....I think the B/C has a pocket door to close off the toilet. But other than that...kind of the same set up for a one-bedroom. The bathrooms are big and split, but still just one toilet, one shower, one jacuzzi tub, but two sinks.
Either way, you will enjoy.