Conch Key?
We stayed there in a corner dormer room. (Sorry, I don't remember the number...) We had two little balconies, one on each side, and a fabulous view of the MK (you might request a MK view, if you haven't already.)
The great thing about Conch Key is that it's only about a five minute walk to the main building/monorail/bus stop ... but at the end of the day, it's a quick 30 second jaunt from the boat dock! Believe me, at the end of a long day, that's a blessing. (You should take the monorail to the MK in the morning, but take the boat to the GF for your return. Saves a lot of time!)
Conch is also a little removed from the hubub of the pool and the main building, so you really feel like you're in a quiet, peaceful corner of The World.
Enjoy!