I think the Grand Floridian breakfast buffet at 1900 Park Fare is one of the best in WDW. Here is my review:
The eminently colorful setting of this bright, whimsical place is a great start to your morning. Kaleidoscopic hot air balloons are your tables centerpiece, and the brightly-striped walls are accented by carousel horses and framed Victorian circus prints. While the turn-of-the-century French band organ, Big Bertha, plays above your head, Disney characters roam the room signing autographs and taking pictures at each table. The breakfast buffet is hosted by Pinocchio, Mary Poppins, The Mad Hatter, Alice in Wonderland, Pluto, and Gepetto and in the evening hours Cinderella characters in attendance for a bountiful prime rib dinner buffet. Breakfast is the better of the two meals, one of the best morning feasts at Disney.
Sample Menu Items
Breakfast Buffet: Fresh Fruit, Oatmeal, Cereal, Bacon, Sausage, Waffles, French Toast, Sautéed Potatoes, Scrambled Eggs, Pancakes, Made-to-Order Omelets, Breakfast Bread Pudding; Childs buffet: Mickey Waffles, Donuts, Scrambled Eggs
Dinner Buffet: Soup & Salad Bar, Pasta & Sauces, Roast Pork Tenderloin, Seafood Newburg, Baked Fish, Hand-Carved ham and Prime Rib, Assorted Vegetables, Mashed and Roasted Potatoes, Creamed Spinach, Chocolate Silk Pie, Key Lime Pie, Warm Cherry Cobbler, Warm Bread Pudding with Vanilla Sauce, Soft-Serve Ice Cream
Childs buffet: Fish Nuggets, Chicken Nuggets, PB&J T, Mac 'n Cheese, Mini Hot Dogs and Hamburgers
Hope this helps.