That Google image is interesting and size does matter although with 3 I think you'd be comfortable in either. We've stayed in both, Pop was years ago and Caribbean was in July. We actually had 3 adults, a 6, 3 and 1 year old. It was tight, but manageable. We only stayed there for one night before moving to the Poly. We wanted to experience the Skyliner. I enjoyed the room, especially when the 3 year old opened her couch/bed. The art there is precious and she was thrilled. We had a room near the Riviera Skyliner station which was convenient. It is a request you can make, but it's never guaranteed. The biggest problem I saw with the Caribbean was the huge property. The map and arrows were not helpful to me. I was lost pretty quickly. I feel like I walk enough (more than enough truthfully!) on a Disney vacation without wandering around at the resort trying to find my way. You'll be happy with either room though.