Alright, we've picked one....And the winner is...Sundiver.
After writing all the resorts about availability, it came down to 3: Sundiver, Corona del Mar, and Carribean Villas.
We went back and forth for a while, but since we had the most positive feedback regarding Sundiver, we chose that one.
Thanks everyone for all your suggestions!
We look forward to our trip.
We shall share our experience when we return.