I will let you know what I think. I think ASMusic may be quieter overall. I have only been there just to walk around and take pictures so far.
I think it will be hard for it to compete with Pop in my heart, though, because I have this sort of emotional bond there. Pop was our first on-site resort, and it was for such a fabulous and much needed vacation. I left there just determined never to stay off-site again, and feeling that Pop was just a really comfortable fit for us. If I get that same feeling at any other resort (I can only do value, with my finances) then I may change my mind, but for now, Pop is my favorite.
I promise I will come back and give you a very fair opinion, though, and tell you the goods and bads and differences as I see it, if that will help you.