With Disney, I would suggest Magic Kingdom as the park to go to. More rides and it's the biggest of the parks, so more bang for your buck. You will need to reserve a park when you purchase tickets as well. With the later arrival into Port Canaveral, (Our sailing arrives at 1pm) by the time you get off, get an uber (Or any transportation) it's another hour ride to the parks. So, you will need to figure getting in the park about 3-4pm. So, you may only get about 3 hours and I know Disney super expensive at the moment. Also, if you are still looking into it, check the park hours, there are times they shut down Magic Kingdom early for paid parties. (Hit Disboards.com for more Disney info). Best of luck!