#1 - Magic Kingdom. The longest list of 'Must-Do's' (Pirates, Haunted Mansion, Splash, Big Thunder, Ariel, small world, Buzz). Fireworks work for us.
#2 - Animal Kingdom. I know it's a half-day Park for most people. But that's what's great too. My family enjoys having time to be at a pool. Start at Kilimanjaro, Lion King, Nemo, Birds, Everest. Looking forward to Avatar/Pandora expansion and the Nightime Show.
#3 - EPCOT. We enjoy Flower & Garden more than Food & Wine because we find this to already be the best Park for food. World Showcase is a lovely day with the family, but typically too long for my 'amusement value'....but a lovely day with the family in a wide space with good food. Could easily be our #2 if it didn't take from daily dose of pool time. Illuminations is our least favorite Show.
#4 - Hollywood Studios. Toy Story Mania makes the price of admission worth it. Rockin' Coaster, Tower of Terror, Beauty & Beast Show make this Park a shorter day for us than Animal Kingdom. Changes at Hollywood Studio, from the many Rumor Pages, seems to point to a much needed makeover. We like Sorcerer Mickey, so we're partial to the Hat & Fantasmic; hope these elements stay.