Avatar and Korra are both uneven in places but my kid and I adore them both. I love how things that annoyed me on a first viewing (e.g. the contrast between Aang's youthful playfulness and everyone else's war-weary stance) made sense on rewatching (when I realized that of course, for him it was just yesterday that he went into the iceberg, he still hasn't come to terms with being the Avatar yet much less figured out how to live up to that.) I have an endless love for Iro and his fatherly relationship with Zuko.

And on watching Korra repeatedly (which my kid and I are doing now) I have developed a deep love for Tenzin and for both of Toph's daughters. I wish the show could have been explicit about Korra and Asami's relationship, though the comics that follow the show absolutely do go there, showing their first kiss and Korra bringing Asami home to her parents and so on. And I've heard people argue that Korra walked so that Steven Universe and She-Ra could fly, on the queer representation front.