I haven’t seen TLA in a long time, but I still consider it my favorite. Both TLA and TLoK have very different pro’s and con’s and what I liked about TLoK is how they handled darker topics to a younger audience. The character development was amazing, even if it was slow and I got frustrated with Korra, she was realistic however this influenced the plot of the story and we could have gotten more out of it.
TLA was a mix of all of the great things from humor, action, romance(without being too much), message, story, character development..