I have stayed at both and have found a home at Music. Here is why. First of all, the all stars DO NOT share buses on a regular schedule. My wife and I travel down to WDW every spring and this past trip I was never on a bus that shared. NEVER. Yes, I have been on a bus that shared in the past, it was in the afternoon and when we got on board we were the only ones on the bus. We then went to Movies, picked up twomore riders and then were off to the Magic Kingdom. How can you not justify utilizing a single bus at that time of day when ridership is always so low? At peak times I have never shared. Second-Pop Century has 2880 rooms while Music has 1604 rooms. Figure it out yourself. Whi is going to have more people in the restaurant in the morning eating breakfast, Music or Pop. Who will have more people in the pools, Music or Pop. Who will have more people standing in line at the parks waiting for a bus, Music or Pop. My brother stays at Pop every year and he has resorted to taking the AoA bus because, despite the long walk back to Pop, he catches the bus quicker due to the long lines. Finaly, we have found the staff at Music to be especially wonderful. If you look at my picture, that's me with the girls from the gift shop. It is up to you. For me, I choose Music.