We just went to Universal and Islands of Adventure last week. Stayed at Hard Rock hotel - It was amazing!! It's affiliated w/ IOA and Universal so you get free Express Pass (like FastPass at Disney except it's a more efficient system b/c you don't have to get a ticket and return; you just walk right on). My kids are almost 6 and 7. We spent 1 day at IOA and 2 at Universal (about 7 hours at each park on each day and about 4 hours at Universal on 2nd day). The effects on the HP ride are amazing, BUT if you are not there when the park opens (you get in 1 hour early if you stay at Universal Hotel), it could take HOURS to get on the ride, which lasts about 4 minutes. There are some great roller coasters at both parks if your kids are thrill seekers, and the parks are definitely targeted for older kids. The food at the parks is expensive and there aren't as many options as WDW, but CityWalk is right outside the exit of both parks and there are several good restaurants there. You can walk (5 min) to both parks from Hard Rock or take a 5 min. boat ride. The hotel is perfect for kids your age; arcade, movies on big screen by the pool (dive-in movies) every night, great waterslide and heated pool, shuffleboard & ping pong. We were upgraded to a club level room (7th floor) for some reason (and at no cost to us). COMPLETELY worth every penny - whatever it would have cost if we did in fact have to pay - b/c they have a free continental breakfast (and it's quite good), snacks at 12pm, appetizers/wine/beer from 5-7pm (different theme each night; we had enough to eat and didn't even need dinner 3 nights we were there) and dessert at night from 8:30pm-9:30pm. They also have soda/water/coffee available all day, and you can take it with you to the parks if you want. They had sushi one night; cake pops for dessert and they catered to our multitude of food allergies. We saved a TON on food by staying on the club level. We would go back to Hard Rock in a heartbeat, and if you have to pay for Express Pass b/c you're not staying onsite, it would be $87/pp. The lines for the popular rides would have been intolerable without the Express Pass and we weren't even there during a busy time. I'd say do something different and try Universal & IOA (which is where HP is). I'd get at least a 2 day pass. It's a little too much to see both parks in a day.