We've stayed at both and we'll be back at Dolphin shortly. To me, the attraction is the proximity to Epcot, MGM and the Boardwalk. I find that a brisk walk to any of those beats any WDW transportation. In addition, they've got a great white sand beach and pools for a day off from the parks. As for the reataurants, others praise Shula's and the newest one recently opened, something with 'Blue' in the name if I remember correctly, but we've only hit Tubbi's, the cafeteria style eatery in Dolphin. We like it.
Some say that S/D are not 'Disney' enough in the themeing. I disagree, and how can a place not feel a part of WDW with Spaceship Earth and the Boardwalk in sight?
Bill From PA