Only ate once each at Mythos and Finnegans, and picked Mythos for the poll. The atmosphere/theming is great, and the food is unique and delicious.
But Finnegans has good food too, and there was live music there when we went.
We would go back to either one again, but I would pick Mythos first. Neither is typical theme park food, and both have food that is really well made. Not overly expensive either.