WE have stayed in all the WDW resorts multiple times. the Epcot area is wonderful! Although we agree that the MK resorts are quintessential 'Disney', if you haven't stayed here then you will miss out on a wonderful Disney experience. Many people love the Epcot area even more than the MK area resorts. There are good reasons why this is so. And then... Of all the Epcot area resorts, the one that appealed to me the most for my first visit here was the BC.
BC advantages:
Even the standard rooms are convenient/have advantages. The standard rooms that are far from the BC lobby are super close to Epcot! There is a little gate to a secluded door to these rooms that is so convenient! You can open your patio door and listen to the sounds of music playing in World Showcase. You can watch some of the high fireworks from some of these 'standard' rooms' balconies.
Rooms are recently refurbished. Yay! Less likely to have any issues!
The beachy theme is light and airy. Beautiful!
The marketplace is in the BC section of the YC/BC.
The BC is the closest resort to the BWI and the activities there. Overall the BC felt central to everything! (The YC is right next door, but the YC/BC is a sprawling resort so that the distant standard rooms at the YC are very far from anywhere we wanted to be. It was just less convenient). OK, the BC is perhaps the furthest form the DHS but we generally took the boat there. If you are walking, it is a bit of a hike to DHS regardless (although quite doable).
Very few BC rooms overlook Storm Along Bay. I had a Storm Along Bay view at the YC once. It was awful, IMO, and we paid EXTRA $$$ for it! The views at the BC are in many cases much nicer, IMO.
WE have stayed in all categories of rooms at the BC and enjoyed them all! From standard rooms near Epcot to lagoon view rooms in the CL. This is a gorgeous, fun resort with an awesome pool and nice quiet pool. We have had full balconies and Juliet balconies. All were enjoyed by us! We
haven't had a bad stay here yet!
(I have had less enjoyable stays at the YC, BTW, but I still overall love the YC as well. It's just a touch less convenient, IMO. Things like distant standard rooms that are a far walk from everything! Rooms that had unpleasant views and/or NOT what we had booked - in one case a downgrade. Looking back now, I realize that I have simply had bad luck staying at the YC)
Whether you stay in the Epcot area for the entire trip, or just as part of a split stay, you really should experience staying here at least once. It is so tranquil and beautiful walking into World Showcase in the mornings or walking 'home' after dinner or Illuminations! No huge crowds like at the main entrances, just the few people staying in the Epcot resorts! LOVELY!
Good luck choosing your resort!