Pop Century. Very good resort, we enjoyed our stay alot. All three pools are good sized and the food court had a good selection of reasonable and very good food.
Next choices in order would be movies and then Music. Sports needs a rehab in our opinion.
I'll gladly answer any specific questions you have.
We have done both and actually preferred ASMo. We spent more time waiting in lines at POP (food court, busses, etc) during the same time of the year. Also, the noise level was worse at POP. DH refuses to go back.