The week after Thanksgiving is a wonderful time to go. Weather is great, crowds smaller, and Christmas Decorations are up.
BUT as Richyams said, it can be a very difficult time to get reservations. For the last two years we have reserved a two-bedroom at OKW for this time period at the 11-month window.
Both years we waitlisted for a 2-bedroom at BWV right at the 7-month window and didn't get it either time. Of course we love OKW, so we weren't disappointed, just thought it would be fun to go to BWV for a change. If you're thinking about going this year, I would call now and get whatever reservations are available and then waitlist if you really want to try for BWV.
If you're thinking of going next year, I would definitely folllow Richyams advice and call at 11 months day by day.
It's a fantastic time to visit WDW!