We have only been to a few restaurants in the world, my partner would say the Yak and Yeti. I would go for Mama Melrose's Ristorante Italiano. However, things could change this year with Epcots Via Napoli being open.
My all time favorite is Cinderella's Royal Table....however I have many that I really like.....
Breakfast - O'Hana's
Lunch - Casey's
Dinner - that's a hard one....really enjoyed 1900 Park Fare (but kinda on the noisy side), Chrystal Palace, Coral Reef and Bergarten
I have a new favorite Via Napoli. I ate at Via Napoli twice during my last trip and loved it. I'll be eating there again in early October. My other favorite is Jiko.
My wife loves Biergarten. She is German... I think it is ok. I like being sat next to people. It gives you the excuse to make a friend when normally you wouldn't.
One of my favorites is Tutto Italia which is roundly despised by some. They have a veried olive selection and bread appetizer that is awesome.
Narcoossee's by a long show. I have never eaten at Victoria & Alberts and probably won't. Too much $$$'s Brown Derby is one of the quiteest restaurants at the right time and good food.