I've stayed at BC & BW, and preferred BW, It's definitely personal preference. I like the Luna pool better, because it feels less chaotic to me, but Stormalong Bay is an awesome pool too. In general, I just like the vibe going on at BW. It feels like my home away from home.
We had a room overlooking the pool, and during the pool party time, it was noisy. Our daughter napped at the time, but luckily it didn't bother her. I think next time I'll ask for a room not facing the pool though.