At Epcot, the only table service restaurant with an excellent view of Illuminations is Rose & Crown from patio seating. However, you cannot request or be guaranteed a seat on the patio. Even if you're sitting inside, you'll be able to go outdoors and watch the show from a viewing area.
Chefs de France, Bistro de Paris and Tokyo Dining may have limited views of Illuminations. Once again the quality of the view would depend on where you are seated in the restaurant.