Disney

"It's been a few years for us, but in our experience the Park Hoppers generally turn out to be a good deal. And I would not do DisneyWorld with a child without a park hopper. Your child's favorite attractions will be difficult to predict, and he will probably have a short attention span, so you'll want the flexibility. Taking the grandparents along is a wonderful idea, as long as you all get along well. Be sure to allow time for naps and etc., as the parks can be overwhelming even to adults. I saw several small-child meltdowns the last time we were there. Adults often get into a mode of lets-just-see-one-more-thing, and that runs counter to what most toddlers need/want."