Pop, and AoA, have some of the best bus transportation on-site at WDW. There is just one bus stop within the resort, the bus goes no place else once it leaves the resort..goes directly to the park. The other resorts either have multiple stops within the resort, or they head to another resort on the way to a park. Yes, there are lots of guests at Pop, but buses tend to run fairly frequently. Park closing is where the longest wait times come, but that's pretty much the same with all the resorts.