We need 4 beds - but 3 rooms, as Son #2 and the GF are paying for their own room and will have zero interest in having a third person in their spare bed.Just an fyi: the Dolphin has 2 full-sized beds in most rooms (I could never understand that decision in a modern hotel). The Swan has 2 queens or 1 king (I don't think there are any 2 kings, but you could check on that), depending upon what room you select. Since the number of beds is an issue for your group, just keep the above in mind, especially with regard to your husband, who is tall, and may prefer more space.
When we used to own a Queen at home, we were able to suck it up and sleep in a Full/Double for holidays.
Now that we've had the luxury of a King for the past two years, there is no way we could take two steps back.
If AS comes we will need 3 separate rooms, or a WBC condo.