DD did not like animal kingdom at all as a preschooler because she wanted Disney Princesses and there are none there. We have a good zoo at home, so she was not at all interested in looking at the animals when there were rides and princesses to be found at MK and EPCOT and she begged to go back to those parks. She liked Safari, the Lion King show, Tusker house restaurant and meeting characters and that was it for AK. We have gone every year since she was 2, and she is 9 now, and likes AK better, but still places it in last place as far as the parks go. She started liking it when the did the Wilderness Explorer mission book- I think she was 7- but your little one will not be old enough to enjoy that at age 2. MK and EPCOT have always been DD's favorite parks by far- that has not changed since her first trip at age 2. I wouldn't want to drop any parks, but if I had to, I would drop AK, or do hoppers and split a day between AK and DHS (I would do FP+ for later in the day at DHS so you could get one at TSM). I don't know when your trip is, but DHS might be pretty torn up by then since they are starting construction for Star Wars soon. I think you definitely want 2 full days MK and 1 full day EPCOT (EPCOT is a 2 day park for us). As for your other day or two, I would just look at all the options in the parks that you think your girls will really enjoy and pick that way.