I've never even seen Pandora the movie, but FoP is pretty awesome. FoP had to have the "wow" factor to draw crowds, because people aren't riding it because they love the movie. And it delivers. That's why FoP FP were easy to get before the ride opened, but once the ride opened and reviews came out, FoP became the hardest FP to get in all of WDW. But if you don't want to try it for yourself, someone else will be thrilled to have your FP. ;-)
I think many people have grown up with the Toy Story franchise and have a personal connection to it, far more than Pandora. But I think these rides will be crazy popular, because they fill a void that's existed at DHS for rides for the whole family/small kids.