I also like season 2 better than the Avatar movie.
Although the season 1's plotline IDEA was nice, they executed very badly and ended up portraying a moral opposite of what it should have been (non-benders aren't as good as benders!). For season 2, it looks like they have chosen a plotline they can cope with, and while it isn't as good as the inequality thing, a good idea portrayed well is better than an amazing idea portrayed badly. I could go into detail as to exactly why I hate season 1, but I'd rather not spoil it for those who like it, because I wish I could like it as well.