Hi! My family is going to Orlando in April for the first time. We will only have one day to visit either IOA or USF. Our girls are 6, 8, and 10. Our 6 year old is 44 inches and our 8 year old is 46 inches. Which park could they ride more? Which is more fun for kids? Mom and Dad are not big coaster fans but 10 year old is. Is there a pass that will let you in to both parks on the same day? Thanks in advance!