J have not stayed at any of the All Stars, but I stayed at POP last trip, liked it and would definitely stay here again. Yes, it's a big resort, but seems to have a fairly compact footprint for its size. I had a Preferred room in the 70s and it was a great location. If I booked a standard room there, I would request 70s, too.
Big selling point for Pop: it is a short stroll across the bridge to Art of Animation, which has a really good food court (that also seems less crowded in my limited experience). I haven't done this, but when you're returning from the parks, if the bus line is too long or bus too slow, you can take the AOA bus and walk to POP.