Stay at the Animal Kingdom Lodge. It is the nicest resort on the entire property (I have stayed in 90% of them). It is themed like an African lodge and has animals in the Savannah at the back of the hotel. If you have the money, ask about the concierge level. They have food available at all times for you and a special early morning safari at the Animal Kingdom at the Kilamanjaro Safari Ride. It is by far the most beautiful and extravagent resort on site.
The restaurants there are also wonderful. Boma is an african style buffet and Jiko is a nice African style sit down restaurant. I also heard of a great restaurant in the Polynesian resort named ohana that is supposed to be great.
I am a pretty big Disney buff. I go there all the time and my brother is currently employed there. There is plenty to do for adults at Disney. At Epcot, you can go to the world showcase and drink at each of the countries, sampling different alcohols. That is my favorite park of the four, although Animal Kingdom is good too.
Off site there is a beautiful hotel named the Gaylord Palms. It is supposed to be beautiful inside although I haven't stayed or been in there.
http://www.gaylordhotels.com/gaylordpalms/splash.cfm