While I have nothing against AKL (it's my son's favorite hotel and my second favorite after GF), as you can see by my signature I am absolutely love the Grand Floridian. I think it is worth the price difference because of the location (nothing like being on seven seas lagoon) and all the transportation options (boats back from MK are great, monorail, buses) and the proximity to MK. The zero entry waterfall pool is heavenly...it seems as if the lagoon is coming straight out from the edge of the pool while you are standing in it. The quiet pool and jacuzzi are nice, too...right in the middle of the gorgeous Victorian inspired grounds. I love the beach swing on the sandy beach and watching the sunset from there is so relaxing, as well as watching the fireworks from the dock (or our room) and the electric light parade in the evenings.
If you have kids there are plenty of kids programs (pirate cruises, alice in wonderland's tea party, adventure in cooking, my princess party...) and you can rent water mice (or other boating activites) right on the lagoon. I love the high lobby and the music playing in there as well as the afternoon tea, which is one of my favorite things to do. There is also character dining at GF, both am and pm, a spa, business center (for internet, if necessary), plenty of restaurants, including formal and informal eateries, and large rooms with pretty decor.
AKL is great, too...but very different. Would I give up a stay at GF for AKL? Well, no. But we split stays quite often and usually spend a few days around the animals, too.
I think AKL and GF are the two best deluxe hotels on property--JMHO.
