Hi Jennifer!
My favorite Disney Value Resort is Pop Century, my favorite Moderate Resort is Port Orleans Riverside, and my favorite Deluxe Resort is the Wilderness Lodge. I recently answered a question on the Wilderness Lodge
here.
With regards to attractions in the Magic Kingdom, l recommend all of the attractions in Fantasyland, especially Dumbo, it's a small world, Mickey's PhilharMagic, and Peter Pan's Flight. I also recommend Pirates of the Caribbean, Buzz Lightyear Space Ranger Spin, and Monster's Inc Laugh Floor. You should also think about visiting the Haunted Mansion. It is a spectacular attraction, but some young guests are frighten by its name and what they think is inside. Also, be sure to visit Mickey's Toontown Fair.
At Hollywood Studios, be sure to experience Toy Story Mania, Muppet Vision 3-D, the Great Movie Ride, Beauty and the Beast stage show, and Voyage of the Little Mermaid. At Epcot, Soarin', the Seas with Nemo and Friends, and Turtle Talk with Crush are a must. At Animal Kingdom, be sure to enjoy the safari, Finding Nemo - The Musical, and Festival of the Lion King.
Your might also consider a Character Dining Experience. I recommend Chef Mickey's in the Contemporary Resort. Other options include 1900 Park Fare in the Grand Floridian, the Crystal Palace in the Magic Kingdom, the Garden Grill Restaurant in the Land Pavilion in Epcot, Princess Storybook Dining in the Norway Pavilion in Epcot, and of course, Cinderella's Royal Table inside Cinderella Castle.
If this is your first visit, be sure to pick up "1st Visit" buttons when arriving. Just ask at your hotel resort or Guest Relations in any theme park. It only takes a few minutes and
helps other Cast Members make your trip more enjoyable..
Have a magical vacation!