I'd choose Sports because it does share. It shares during the day when not as many people are riding since they are typically at the parks. In the morning we'd have our own and at park closing we'd have our own. In fact when we went in Sept the only time we shared was when we were coming back from Hoop Dee Doo. Sports is the first resort you will come to, then Music, and Movies is at the end. So know that when you are leaving your resort Sports gets off first. I don't care for Pop because of parking. Just seems like such a hassle to park there. I've been 5 times. Love All Stars. Plus Sports' rooms are getting refurb'd. not sure how far along they are. In Sept they had finished the baseball bldgs. Plus I love the food court at All Stars more. Some of the items we tried at Pop were just too salty.
Enjoy!