It's always tough to give advice on where to buy, because everyone has their own preferences and things they like. I can tell you that, personally, I would buy at BCV. I was in the same boat as you when I was purchasing
DVC. We were between Poly, BCV, and BWV. The best piece of advice we received (that still holds true) is to buy where you really want to stay. We love the vibe/theming at BCV and so we ended up purchasing there. Actually, BWV came in last for us behind Poly. Here are a couple things to consider:
- BCV is the hardest resort to book at 7 months. If you like the vibe and want to stay there, you need that 11 month booking window.
- There is NOTHING that beats the proximity to the IG entrance at Epcot. We get park hoppers and love to end our night in WS enjoying a nightcap. My wife loves to watch the fireworks, too. There is nothing better than casually strolling out the IG exit, past the long line for Skyliner, and being in your room literally within a few minutes after leaving Epcot. The back walkway to BCV is within 50 yards of the IG entrance/exit. It's fantastic.
- Stormalong Bay. Especially since you have little ones. They are going to LOVE Stormalong Bay, especially as they get a little older. We enjoy watching the big group of kids playing games in the pool. Our daughters love SAB so much that they were 100% on board with mid day breaks to go relax by the pool. The sand bottom is very unique and the pool is huge with many little "coves" and the lazy river. And for the parents, I don't think there is a better pool bar than Hurricane Hannah's.
- The theming/vibe at BCV can't be beat. It starts when you walk into the lobby upon check in and are hit with that beach smell they pump in. My daughter's joke that they wish Disney made spray that smelled like that so they could spray it in their room at home. The theming/decorations have that laid back Cape Cod beach vibe, which we love. Add in little nooks like the Breezeway, Salarium, and the little reading room right off the DVC lobby.
- You also have a character breakfast right in the main lobby at Cape May Cafe. Seeing the characters in their beach attire is a fun touch and the kids love it. Only having to walk to the lobby of your resort for a character breakfast is nice, especially when everyone is tired.
- The proximity to good dining is top notch. Yachtsman's Steakhouse is right on property and is excellent. Martha's Vineyard is one of the most underrated bars on property and has really good food options, too. For the low key lunch AND ice cream, there is of course Beaches and Cream...a cult favorite for many WDW enthusiasts. All those are right on property. Then you can also stroll across the bridge to Cake Bake Shop, Flying Fish, or any of the other Boardwalk area restaurants.
We look at is as the BCV owners have access to all the Boardwalk restaurants and can get a room at BWV at 7 months, but the BWV owners don't have access to the BCV amenities like SAB and actually booking a room at BCV. Again, it's all personal preference and you really can't go wrong if you purchase where you truly want to stay.