Hello Timbo
When I return to Disney in October it will be my third trip using the silver plan. The best restaurants will depend on you food tastes steak/seafood/exotic/plain.
For two wish Dining places I like the Yachtsmans Steakhouse and Fultons Crab house for their obvious specialties. I will be returning to Fulton's in October.
Using one wish I like Teppanyaki at the Japanese Pavilion in Epcot. You can get you money worth ($34 per wish) and if you time it right, like I did on my last trip, you can walk out of the restaurant and be greeted by Illuminations.