Locally - Little Valley all the way. Of the dozen or so times I've been there, I've only been able to eat just 2 or 3 times because the damn line never died down and I had to shoot video.
Outside of the local area, the food at Deer Creek in Spring Valley, Minnesota is tough to beat. Steaks and monster sized pork chops on the grille, corn on the cob and an awesome red potato salad.