I'm sorry to say, but I gave Legend of Korra a solid chance, I wanted to like it. I can sit here and list many many solid merrits for it, but what really hurt their show was how they thought they were going to be canceled at the end of seasons one and two. They end up changing villains every single season, but only really find their flow in ways that make it work in season three. They have WONDERFUL concepting, such as having Chi Blocking spread to the average populace in season one to oppose bender oppression, but then by season two they just FORGET ALL ABOUT IT.
A lot of what makes Korra bad is the reduced impacts of the Ehasz's. The wife's the backbone of The Last Airbender's best stories and otherwise had an advisory role for lore consistency and immersion of the setting, and the husband was quite good in his own right even if not as great at it as she is.
The writers that stayed behind to keep writing were also egotards about people critiquing their work. They end up trying to destroy all the Ehasz's built as the story goes on and fans complain about how their decisions "Aren't as good as they were in The Last Airbender", pissing them off further. By season two they outright destroy her connection to the first series... BY FORCE.
The show's also super guilty of "too many characters" syndrome, among a slew of other issues like poor character writing/concepting (save for Korra herself for concept anyway, she was a fun idea that they didn't know what the fuck to do with until season three). They even shit on the mysticism by turning the avatar into a fucked up spiritual yin/yang mess instead of the elemental spectrum that reflects actual Eastern culture more to it's core.
If you're going to watch Legend of Korra, go into it thinking it's not "The Last Airbender" and there's a chance you'll see redeeming qualities. I only really enjoyed it from seeing the evolution of the writing organically try to figure itself out when a lot of mistakes were made in ways that leave it far, far too late, and the concepts they came up with for their worldbuilding was still solid at many points of the story even if their use of them is usually lackluster (with the spirits shit in season two as the absolute worst).
Edit: Their combat scenes if you skip season two are also very solid.
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