Many people like Movies the best of the Allstars for its theming, and because the refurb is completely done there. I personally always pick Sports, strictly because of the shared busing, and Sports people get picked up first and dropped off first if you're in a shared bus. It happens a fraction of the time, but especially in the am for RD, when there were only a few people in line, you sometimes end up going to the other 2 resorts to pick up more guests and you're not at the park as early as you hoped. But Sports can be loud and busy during Pop Warner in early Dec and the various cheer competitions - more so than the other Values.
We used to go to Pop a lot more, and less often now because the price difference between the AllStars are widening. But the transportation would be the advantage for the extra cost at Pop. The dining is a bit more popular there too over the Allstars, can also walk to AoA, Flavor of colors.
We found some discounted Pop rooms for this Sept, that we haven't booked yet on other travel sites that were only $10 more per night. I think the lowest I've seen were $145+ tax/night, but for sites like Orbitz/Travelocity you can get an extra 15% off your 1st booking via the app. Allstars were like $129 and up. For us, if only $15 more/night, I'd consider Pop. For $350, I'd go with an Allstar. As a prior post stated, that's a lot of Uber fares, dining, whatever.