The suites have a queen bed in the bedroom, a full size pull-down bed (it's in the wall above the dining table, and folds down on it) and a fold out double sleeper sofa. whether the beds are small for your group really depends on what size you're comfortable with. Hubby and I have a full size (smaller than a queen) in our bedroom at home and it works fine for us. So the bed size at the value hotels is pretty much what we sleep on all the time.
If you decided to go with adjoining rooms, you'll end up with two full size beds (not queens) in each room. They will be in the Little Mermaid section of the property, that is the only part of AoA that has non-suite rooms. And while you can request adjoining rooms, there is no guarantee you will actually get them - they can't be booked as adjoining to guarantee it.