I've stayed at both, and you really can't go wrong with either one. I like the Swan because it's easier to get around, but the Dolphin has a much more impressive lobby. We actually could get to Tubbi's and the grotto pool quicker from our room at the Swan than our room in the East Wing of the Dolphin. I also like the layout of the room a little better at the Swan. The bathroom area has 2 sinks and it's bigger. If you do go Dolphin, request a room on the West Wing and fairly close to the elevators.