There are many factors that go into deciding on which resort to stay in. We are planning a possible trip to WDW for my sister's high school graduation and the major factor in determining where we plan to stay right now is where we plan to spend the most time? We have two small children, my son will be close to one and my daughter will be two. So convenience to parks is a huge factor. We do not want to stay somewhere where we will have to take a bus to every park. We need another form of transportation whether it is boat or monorail. So we have to decide which parks we will be spending the most time in. If we think we will be spending a lot of time at the Magic Kingdom, then we should choose a Magic Kingdom Area resort. So you may be asking, well what resorts are in the the Magic Kingdom area? These resorts include Disney's Grand Floridian, Disney's Contemporary Resort, Disney's Polynesian Resort, Disney's Fort Wilderness Resort and Campground and Disney's Wilderness Lodge. Each of these 5 resorts provide another form of transportation other than bus to the Magic Kingdom. The three monorail resorts (Contemporary, Grand Floridian and Polynesian) provide transportation to Epcot as well.
On the other hand there are the Epcot area resorts. They include Disney's Yacht Club, Disney's Beach Club, Disney's Boardwalk Inn, Disney's Caribbean Beach Resort and the Walt Disney World Swan and Dolphin. Caribbean Beach will still require a bus ride to every park but all of the other Epcot resorts have boat access to Epcot and Hollywood Studios or you can even walk to them!
So a major question may be, where do you plan to spend a lot of time? If your answer is Magic Kingdom, then the Magic Kingdom area resorts are probably the right choice for you. If your answer is Epcot or Hollywood Studios then you should choose an Epcot Area resort.
Sometimes it is just a matter of personal preference.
Of course there are many other resorts besides these in these two areas but this is just the dilemma that I am currently facing and I think this will help people who are asking themselves the same question that I am.