We actually prefer the lagoon view rooms at Big Pine Key! We liked the view from Boca Chica but didn't like to walk through/around the quiet pool all the time. Our view of the castle from Sago Cay wasn't as good as the other 2 buildings I mentioned but it was a good location and pretty quiet. We always ask for an upper floor. The top floor has the dormer rooms which are actually smaller but appear bigger because of the ceiling height.