The first Thor movie was for sure one of the best MCU movies in phase 1. The main reason is probably Loki, who's a great villain. You can understand why he's doing what he's doing, which isn't as easy to see bu other MCU villains. Thor and Jane also work. I just think this movie had also lots of boring parts especially Thor being on earth killed the movie a bit. It was just a to long part of the movie.
