Those two choices are about as different as can be!
THV would be nice because you get three bedrooms for the price of two. BWV has the location everyone seems to love, although I found we preferred the larger, more spread out
DVC's like OKW and SSR over that location.
For sure the THV are remote but I don't agree that SSR as a whole is in the middle of nowhere. Its near DTD, not a far drive or bus ride to anyplace and its right next door to OKW and the Port Orleans resorts. Funny I never hear anyone complain about the location of the POR resorts come to think of it.

I never felt like anytime we stayed at SSR or OKW that we spent more time getting around/to and from the parks and other resorts. We take midday breaks each and every day and found SSR as easy to do that as any other resort. And we bussed and rented cars from both of those resorts. I'll also add if you have car, being able to park right outside your unit at SSR is beyond nice, talk about a time saver! The BWV parking lot was not convenient at all and the shared busses weren't much better.
It is nice to be a short walk to the World Showcase for meals if you stay in the Epcot area. On the other hand, its nice to be near DTD and its dining options as well. I also love Turf Club and Artist Palette at SSR, BWV has not a thing to eat right there which just amazes me. On the boardwalk yes and close walks to Epcot and BC/YC. But I didn't like the complete lack of dining options at the resort itself.
I do agree a car is about a must for THV but you have that. And SSR itself has way better pools imho than BWV's two pools.
The pool near THV is good for a dip or to relax by with a book and that's about it, if you have small kids that need the bells and whistles, that pool won't cut it much! But you can easily drive over to SSR and have two feature pools, plus two quiet pools, all of which have hot tubs. But for sure right there, its a shame they didn't do a better job with the THV pool. Cheap and lazy on Disney's part!
I think you can't go wrong. I guess let the DVC availabity gods decide, if you can get into BWV at 7 months then maybe go for it! We enjoyed our stay there very much and were never sorry we stayed there but did realize we love SSR and OKW for the expansive grounds, more pools. We love to walk and explore our resort! But the Boardwalk area is wonderful and the units are recently redone and very lovely.