It just depends what parks you like and where you'll be spending your time. Like others said, with Epcot resorts, you can walk or take a boat to Epcot and MGM. Plus, you have the Boardwalk. If you're going to spend a lot of time at MK, then monorail resorts might be better. You can use the monorail for MK or Epcot. You can also use boats to get to MK or other resorts on the lagoon: GF, Poly, CR and WL.