If you are open to a split that is my vote.
I love splitting. I would do the exact same (goal anyway). Split THV and 2 bedroom BC.
Currently if going for more than 6 nights we always split. AK/BC or SSR/BWV I prefer it, it seems like you start over, you have a second vacation, a new pool. SSR, AK are more relaxing. BC/BWV more park time and running around time.
If splitting isn't an option; I would pick BC if kids were under 8. If over that then all over THV. Due to the SAB is really ideal for kiddies. The whole little pool they can walk in, play in sand ect. (They also can sleep on a floor happlily, or share 4 in a bed and don't care.) The opposit for older kids they would probably pick there own beds, with any random pool, over a particular pool.
Side note, Nov can be a miss on weather if you are towards the end, it is possible it may be too cold to swim every day, so this puts like a bonus point on THV.