We have stayed at both the Hard Rock and the Royal Pacific. Our 13 and 11 year old girls LOVED the Hard Rock - the music, atmosphere and pool area were really well suited for teens. When we go back again we definitely will be staying there.
Our girls are a couple of years older now and I wouldn`t hesitate to let them spend a little bit of time at the parks by themselves since everything is so close and they know the rules we expect them to follow.