We own at both. I will give what I feel are pros/cons of each in hopes it will help you in your decision
VWL(BRV) Pros
1. Quiet, peaceful, relaxing, especially down at the Villas end. A stroll at night along the paths is a nice way to see the sights at night. It gets busy at times up in the main lodge, but great thing is, you can escape that at the Villas if need be.
2. Territory Lounge, Geyser Pt are great places to grab a drink, appetizer or full fledged meal(GP)
3. Roaring Forks, though a few amongst us may not feel its as good as back in the day, still, IMO, has some good choices, keeps you from leaving resort for quick bite
4. Wonders of the Lodge Tour and Hidden Mickeys find(they have a sheet with clues at front desk) are free, and cool ways to explore the Lodge
5. Boat rides to Fort Wilderness(don't forget Trails End for a tasty breakfast along with Hope Dee Doo Revue) and Contemporary(The Wave is another wonderful breakfast)plus all the other amenities at this resort. Catch the monorail to Polynesian for more eats or Grand Floridian and rub elbows with the swanky

6. From Waters edge(or as close as they will allow you to get)can see fireworks from MK, plus every night Electrical Water Parade
Cons(this is a hard one as I feel its all pro at VWL)
1. A bit remote(if that's a bad thing)
2. Maybe too laid back for kids(though my kids loved it growing up)
3. Whispering Canyon, back in the day it was must do for us every trip, not so much now. I do feel breakfast is still good, but doesn't merit a trip there from another place on property. If there, yes, maybe or not sure

4. Artist Point, a bit on the fence on this one. Snow White, though I love her, my favorite princess. But she is from Germany, not the Rocky Mountains, just my 2 cents
BWV Pros
1. Proximity to other resorts, BC, YC and Swan and Dolphin. Which opens possibilities for more eats(are you seeing a trend here as I like to eat)
2. Walk out to bridge and see fireworks from Epcot
3. Cool arcade(WL is slightly smaller)
4. Cool pool slide(If clowns aren't a factor)
5. Nice shops along boardwalk, very good ice cream shop along with entertainment at night for free
Cons
1. Lounges are a bit less subdued than WL. At times, the convention crowds spill over into the nightlife crowd at BW and it makes for a different vibe
2. Being that close to 2 parks, any possibility it may cause some issue with kids, "we are this close, why cant we go"
3. I feel BW has changed through the years, it seems to draw a bit more rowdy crowd than years before. Maybe its just me, getting old