we just stayed at the All Star Music for 9 days in november (nov 5th -14th).
Internally, all the rooms look the same, so it doesn't matter what building you're assigned in terms of internal decor (i LOVE that curved curtain rod in the bathtub - great idea).
We were in Jazz and loved it. It's just past calypso, so it's very close to the main building, but very very very quiet.
Also, i'd read on these boards some complaints about noisy rooms. Our room was perfectly quiet (and both DD and i slept really well).
all in all, we loved our stay at the ASMu.