Hi Shabana,
I completely understand how you are feeling; there's a lot to consider when planning a Walt Disney World Resort vacation, and it can be overwhelming. I'm happy to help you with my recommendations!
My first suggestion would be to stay at a Walt Disney World Resort hotel. Guests staying at Walt Disney World Resort hotels have access to complimentary Disney Bus Transportation. You can also enjoy Extra Magic Hours where each day, select attractions are open longer at one of the Theme Parks. I would also recommend purchasing Park Hopper Option Tickets. In my opinion, the Park Hopper Option is worth every single penny; especially when you have young children. During my family's many visits, we have loved having the flexibility that a Park Hopper Ticket provides. You can start your day at one Theme Park, head back to your Resort for a nap or pool time, and then end the day at any other Resort you wish to. One of my family's favorite Value Resorts is
Disney's Art of Animation Resort. Each themed section completely immerses you in a beautiful storybook landscape. Your kids will love the "larger than life" characters that are showcased throughout the Resort and enjoy splashing the day away in the Big Blue Pool.
If by "all inclusive" you mean adding the Disney Dining Plan to your Resort stay then, in my experience, I would only add it if you have "big eaters" and your family eats 3 meals per day. When my children were younger, we did not add it since our children were "snackers" and did not necessarily eat three meals per day. They were more focused on the fun and not the food. That said, there is a Quick Service Dining option that you may want to consider. Please stop back by the Disney Parks Moms Panel should you have any more questions!
Magical Wishes,
Susan