I didn’t know they had separate lines for each park. We will be there in 9 days and have only used the buses at moderates, both of which had covered stops with no lines. I like this set up a lot more so I don’t have to try and figure out who’s getting on the bus and who isn’t.
This. Last March when I stayed at Pop, we took the bus to AoA one night from Epcot because the line looked shorter (it ultimately was). Once we got off at AoA we walked inside to find the map so we wouldn't get lost finding the bridge back to Pop. It was a nice little stroll.