We just stayed at WL and were somewhat disappointed. I guess I felt that we paid for the courtyard view and it wasn't worth it (standard view was sold out). It really is just a room overlooking a loud crowded pool. The Electric Water Pagaent can be seen from your room every night, but to us it just didn't warrant the extra $$$. Now, that is just my opinion - I know a LOT of people LOVE the WL and the courtyard view on the boards here.
We are booked now for AKL standard view for Oct. I KNOW everybody says to get the savannah view, and it does sound really nice, and it is something I would pay extra $ for, because a view of wild animals versus a pool is no contest! However, we got such a good rate with the standard, and we are in cost-cutting mode, so we are going to leave it as is. In the back of my mind, I am hoping for a comp upgrade, but trying not to get too used to that idea.
The Dolphin is fantastic. I love it. I know it gets alot of flak on the boards for not being Disney, but I am a Disney freak, and don't find that I am missing out on the Disney experience there at all. It is such a great location and full-service hotel. Keep it in mind!!!
I would stay at the Dolphin out of all 3 of your choices, except we are trying to stay at all the WDW resorts at some point, so we are going to try AKL. Couldn't beat the deal we got. Once we've stayed at AKL, all we have left is BWI. After that, S/D I think will be in my top 3 places to stay down there.
Good luck!
PS - at the WL they do have regular rooms without bunk beds. I have read on the boards that it is, in fact, somewhat difficult to get a bunk bed room.