We took my then 5 month old grand daughter back in Sept. and her first ride in Epcot was the Mexico ride. She loves cartoons so all the colors and cartoons and music was great, she loved it. Turns out her favorite ride in all the parks was Figment (it was her daddy's too when he was little). I think her first ride in MK was Pirates. We were limited since she was a baby and could only ride the rides we could hold her in our laps for. She loved CoP, the music and all the moving things fascinated her. At AK, safari, she loved the animals. At HS (this was a huge mistake) it was MMRR. The little drop was a bit much and the dancing scene really threw her around even being on her Daddy's lap and with the lap bar holding them both. It was also a little too busy and had too much going on. I think she got to ride the most at Epcot, she got Mexico, Figment (twice) LWTL (she also loved that) and we walked through the seas for her to see all the fishes. We ended up doing a lot of child swap with Mama and Daddy riding and then me and Daddy or just me sitting out and not riding a few rides because I go a lot so didn't mind.