Each park has it's own merits to me. I think it depends on your likes and your group makeup. If you have smaller kids, I'd say MK, teenagers possibly are going to like AK or Epcot better. Adults - hmmmm depends on your style. My favorite is Epcot, I've been lucky to travel and enjoy the world showcase, I could spend hours in each country. While I ride the rides in all the parks, I can skip them and not be heartbroken (except tower of terror, I MUST RIDE IT at least twice each trip). My second favorite is the studio, not because of the rides but there is so much to take in if you just walk around and look, there are lots of nooks and crannies to explore. The same can be said for all the parks though, if you take your time and look and explore there is a lot to see.