Kings Island has a good variety of food. The pizza is one of the best in any park I've been to (not speaking from a bias here). Skyline is always great when one can handle it, Panda Express is good, but those are just for starters. The absolute BEST place to eat is Outer Hanks on the boarder of Oktoberfest and Coney Mall. They have a great variety of items including fish and shrimp. Best of all is an outdoor BBQ pit where they cook the essentials, corn on the cob, some fish, and FANTASTIC ribs at pretty descent prices. Some other things of note are GIANT fresh cut fries close to the Beast, Graeters Ice Cream, and of course, the infamous blue ice cream. In terms of atmosphere, I love to eat by the fountain on International Street. Its a bit cooler around the fountain, its a gorgeous area of the park, and people watching can be fun.

Dollywood has a smorgasbord of great food. There isn't a stall there with bad food from what I've had there. Its part of what makes me consider them my favorite park I've been to. Cedar Point has a good variety of food as well, which is kind of expected from a park of their caliber. Hershey is a runner up to those.
Of course, there is Disney and Universal Studios which I've been to, which will probably be mentioned a lot. As with CP, kind of expected. I think this thread is more for the surprising and overlooked dining options.
I was not impressed with the food of Kings Dominion or Six Flags Great Adventure.
I'd also like to ask another question if I may. Of the traditional park fare, what is your favorite?
Mine- Funnel Cakes!