I would say it is really where you are located, [which park] and what you might prefer to eat.
Personally, we love the "idea" of Tony's. But the last time [march 2011] we went it was terrible & the time before that not much better. Teppan Edo is great if you don't mind community seating. We have always had great food and service there.
Good luck, & happy planning.
Tonys Town Square is so hit or miss and even when it hits it is nothing great. I happen to like Teppen Edo and given the choice I would choose Teppen Edo. I kind of wish there was a really good place to eat in MK.