For Disney and Universal, there are a ton of planning factors. These include transportation to/from the airport, resort reservations, park tickets, park reservations, FastPass+ reservations, dining reservations, packing tips, touring plan advice, etc.
For cruises, there is still a lot to plan from choosing the right destination for your family to understanding the differences in stateroom options. You also need to know your options on shore excursions and when you want to book with the cruiseline or maybe choose a third-party. And of course there are the cruise reservations themselves from dining to child care.
All-inclusive resorts also come with some unique planning factors, starting with which resort best suits your family and why.