I would only do the CR if you can get the TOWER.
Wings are dark and far from food & transportation. Close to the marina, pool and laundry is in one of the wings.
The tower rooms are wonderful. My DS & DD think the CR has the best game room. Very close to MK - first stop on the way back and first stop on the way to MK - so you get a seat every time.
You can see MK fireworks from some rooms. 2 nice pools to use - one by the lake, the other in the shape of Mickey's head with a water slide. Boat & water mice rentals available.
Rooms at CR sleep 5. 2 queen beds and a day bed. Very large rooms, lots of closet space.
Dolphin - closer to EPCOT, MGM, Broadwalk activities, plenty of choice to eat, lots of characater meals in walking distance, on the boat path from MGM to EPCOT, can see the MGM or EPCOT fireworks (depending on room view). A 3 acre grotto pool with a slide and waterfall - and volleyball net on one side.
There is also a hot tub, adult lap pool and a smaller pool.
Small game room and laundry in the hall way out to the pool from the Dolphin. Rooms sleep 4. 2 double beds in the Dolphin. All rooms have been recently renovated. Nice size rooms , but CR is larger.
If you want to spend more time at MK - do the CR tower.
If you want to spend more time at EPCOT & MGM, do the Dolphin.
We like both places. Sorry if I was not a help.
Have fun deciding
