Hi Muushka,
You're probably right, the best way to ensure you can stay at BW during those two weeks would be to exchange points ahead of time with a BW owner...
Here's an interesting twist though LOL... This year I booked OKW at the 11 month mark (we own at both).. at exactly the 7 month mark I started booking day by day to stay at VWL... I was able to complete the task for all 12 nights (day by day....)
Then in September I visited the VWL & found I liked OKW better & I was able to switch back to OKW (I found the dark wood in the Villa's to be a bit more dark than I like)....
Anyways, there were two principals in play here... FIRST, if you ever want to book a DVC resort for a busy time, try it the first year the resort is in operation... This is true, primarily, because people that bought in in the first year have A. already had their vacation & B. used the Magical Beginnings program, so they have no points... I guarantee from here forward you won't be able to get 12 nights at VWL for early December!!! The second principal here is OKW Mass... it's a huge resort... and 3 months before a very busy time, I was able to re-book it... Just thought I'd share this years experience.... But do remember booking a new resort is easiest the first year... BCV's are coming online soon, so, I'm not sure if I'll change next years holiday plans, although I lean very heavily towards staying at BWV's, I love them!