Hi Jackie,
I highly recommend visiting the
California Grill on top of the Contemporary Resort. The food is fabulous and the views are amazing. In my opinion, it is the "wow" restaurant at the Walt Disney World Resort.
My wife and I also enjoy eating at
Jiko - The Cooking Place and Boma at Disney's Animal Kingdom Lodge. Jiko is especially romantic and has awesome food, and Boma has outstanding food at their family-friendly buffet. I highly recommend both.
If your budget allows, then the dining experience at the
Chef's Table at Victoria & Albert's at Disney's Grand Floridian resort can not be beat. It's expensive, but wonderful! You actually eat within the kitchen of Victoria and Albert's and you interact with the restaurant's head chef. Another similar experience, though I've never done it, is the
Chef's Domain at Citricos in the Grand Floridian.
My final recommendation for a great dining experience is
Le Cellier Steakhouse at Epcot. Be sure to try the cheddar cheese soup at it is outstanding and shouldn't be missed!
As these are some of the most popular restaurants at Walt Disney World, you will want to make an Advanced Dining Reservation (ADR). ADRs can be made 180 days in advance and it can be done on-line
here.
Enjoy planning your vacation!