These are mostly third party reccos, so consider the following as research fodder rather than valuable tippage. Any comments, negative or positive, welcome, as well as additions to the list (let's make a monster resource!)
Miss Newport Diner (Newport, VT., 1940's Worcester) for omelettes
The Lyndonville Diner (Lyndonville, VT., home made) supposed to be "awesome" breakfast
My friend Don swears by Skyline Diner on RT 9
in vt near molly stark state park. It offers a 100 mile view and free seconds on waffles and french toast
Blue Benn Diner 102 Hunt Street , Rte. 7, Bennington VT 802-442-5140
Cup & Saucer Restaurant, Route 100 North, Wilmington, VT; 802-464-8062. all day breakfast. chocolate chip flapjacks, raspberry ones too, crispy hash browns, fresh eggs, Canadian bacon
The Inn at Ormsby Hill, Route 7A, Manchester Center; 802-362-1163, 800-670-2841 luxurious expensive hotel (fireplace and hot tub in room, etc), and reputedly really great breakfast. Maybe they'll let you just come for breakfast, worth a try.