Well I am gonna give you a couple of lists
List 1 No Dining Plan and No Budget
Il Mulino at the Swan for Italian and Sangria
Shula's Steakhouse cause its awesome
CRT just because its the castle
BOG if you can get a ressie
V&A's its your honeymoon just do it
California Grill best restaurant in WDW and great views
Citrico's
Narcoosee's
Tusker House breakfast is the best breakfast in all of WDW and is a character meaL
Wolfgang Puck
THE BOATHOUSE (new)
List 2 Dining Plan
Via Napoli for Italian I think its better than Tutto Italia and I am an Italian from New Jersey
Le Cellier for a steak it gets mixed reviews and is 2 TS credits
BOG again if you get can get a ressie
CRT its the castle and is 2 TS credits
50's PT Café is a lot of fun and antics
Ohana breakfast is a character meal and dinner is similar to a Brazilian bbq
Tusker house breakfast is the best breakfast in WDW and is a Character meal
Kona Café for any meal
Yachtsman Steak House
Yak and Yeti in AK
Raglan Road in DTD
Wolfgang Puck
California Grill is 2 TS credits but so worth it IMHO
Coral Reef was very good the last time I was there
Grand Floridian Café
Beaches and Cream
The Plaza
The restaurants at the Swan and Dolphin are not on the Dining Plan but are some of the best restaurants in WDW and Victoria and Albert's is not on any dining plan anymore
If you are on a tight budget then do the
DDP and if you are going to splurge on 1 dinner I would go to Victoria and Albert's its real fine dining. But these are my choices. Best of luck