If your staying on property, crowds are irrelevant. The "No Line, No Wait" express pass policy really works (At least for those who have it) incredibly, and no matter what the crowd situation is, you'll be able to do the entire park in about two and a half hours. I have to tell you though, it's addicting. Last time I stayed at the Hard Rock, I had planned on going to two other parks after Islands, but I ended up just staying and riding Dueling Dragon (and yes The Hulk) all day long... Over, and over, and over again. You're gonna have a great time.
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-FCR
I'd Rather Be Riding Roller Coasters