After watching the new series, I still prefer the old series to the new one. The characters, story, jokes etc etc just seemed a lot better to me. However, that doesn't mean I disliked Korra or anything. Bolin, Tenzin, his kids, Asami, Lin and Amon were great characters, and the humorous parts made me laugh still.
I enjoyed Amon's part the most, though. Even though it was pretty predictable for me, it was a great direction for the show. I don't think I could have enjoyed Amon if he didn't have a real, personal motive for his actions. It never directly tells us why he did what he did—if I'm wrong, please tell me!—but I like to think he wanted to "equalize" the world for two reasons 1) because Aang took his father's bending away 2) so he could rule supreme over everyone else.
I hope he didn't really die in the explosion though. That would have been way too rushed and lazy.
I should rewatch though, 'cause I've already forgotten some pieces of the show.