We have stayed at the BWV twice and the BC/YC many times. We have 3 kids. We love it because ...
1) Being able to walk/boat to MGM & Epcot is great! This works really well in the off season because Epcot is the only park open late. We enjoy going to MK on an afternoon and then taking the monorail back to EPCOT and heading back to the resorts.
2) Epcot also has fireworks every night that the kids enjoy watching. Off season MK only has the fireworks some nights.
3) My kids (3, 3, 8) LOVED last trip the performers at the BW. They liked the juggler, musicians, and magician. We watched them form our balcony or on the BW. This was an added feature since the parks closed early. They also have a wonderful face painter and the hair wraps.
4) We love the VILLAS! It is great to have separate rooms for the kids. We also like being able to eat a few quick meals or snacks in the room.
5) The pools are great! Stormalong bay is wonderful. My kids couldn't wait to get out to the pool every day. My younger ones loved the beach area and the small slide on the pirate ship. Last year we pool hopped here from the BW as
DVC members. This Thanksgiving we are staying at the BCV so we will be able to use the pool! The BW pool is also nice with a "roller-coaster" slide.