I switched from Movies to POP for our trip coming up. My reason, little kids (5 and 8) would want to stay in the Toy Story, Dalmatians or to a lesser extent Fantasia. These are the premium buildings and it is a cost that I don't feel we need. So if you don't want to pay the premium add on, you get put into Herbie or the Mighty Ducks buildings.
Those 2 buildings (themes) do nothing for me, or my kids. Have not seen either movie. I don't really want to answer the question... "Why can't we stay in the Toy Story or Datamations buildings" Their first moments on park property being disappointment. I do realize that the rest of the trip will offset that disappointment, but it is such an easy issue to side step. Pop is all big larger than life. Very similar to Movies, but the kids will be impressed by anything they see, with no real attachment to any of it, and none of it being better or worse than the others.