Hi Lin,
We've sayed at ASmu - in the jazz block, and ASmo - Mighty ducks.
Really enjoyed staying there both times, the themeing is fabulous although very 'in your face'.
Only downpoints IMHO are that they're such large resorts, because of this the foodcourt gets incredibly busy and the queues for the buses tend to always be the longest ones when you come out of the parks (and often on the way there) - and normally the furthest ones away.
If you're happy with large resorts, the hustle and bustle and the larger than life theming, you'll LOVE it there, it's a lot of fun.