I am trying to decide whether to go to Six Flags Kentucky Kingdom, Holiday World or Kings Island. I will be taking six year olds. We went to Holiday World last year and it is very nice as always. My dilemma is I havent been to Kentucky Kingdom for 2+ years or to Kings Island for probably 15 years. I am trying to figure out which park would be best for six year olds. They are too big for the little rides but not really thrill seekers and will not ride roller coasters. We will spend most of the time in the water parks but I dont know which one has the best water park. Anyone been to all three recently and can share some insight?