Its human nature to like the first thing you see/get used to. Season 2 is not lacking action. Too much action and it gets rediculous. The most important thing is story. Remember, Avatar is a really short series. 60 episodes to show how a group of friends stop a world war and brings peace to everything. Thats the thing with American shows, they tend to be alot shorter than animes that usually go in excess of hundreds of episodes. It must be a real challenge for creators to supply a good enough story in such a small amount of eps when its somethimg so big we're dealing with.