Another vote for park hoppers. I don't find it difficult at all. It's very easy, just hop on the monorail (between EP und MK), the new skyliner (between HS and EP), the bus (available between all) and enjoy the few minutes off. I really like hopping between HS and EP, where you can also take the boat or walk - especially the walkway with passing the Boardwalk is beautiful. Often it only takes not more than 30mins, so even with commando style you can have more flexibility for dinning (I prefer the table services at World Showcase, but Epcot is only a half-or one day park for me) or doing re-rides on your favorites on other days with same-day fastpasses (I could ride ToT, RnRC, EE, FoP multiple times or enjoy the animal walkways when everything is busy, so I often hop over to AK or HS for just 2 hours).