While most would disagree with me who’ve watched both Nickelodeon series in the Avatar universe, I actually prefer Korra to Aang.
Both avatars have the same heart, similar friends, terrible enemies, and both have their own personal struggles. But Korra was much older than Avatar Aang. She also mastered water bending, fire bending, and earthbending a lot faster and more gracefully than Avatar Aang did.
Her storyline is also a lot more complex. While Avatar Aang had to worry about mostly enemies from the Fire Nation, Korra often had enemies that she didn’t know were bad guys.
I didn’t really like most of her romances on the show. The major one was with Mako but something never really seemed right about it.
I did like the irony that she had to be trained by her previous life’s son in air bending and it both went pretty horribly for both of them.
Korra does have to deal with a lot of stuff during her series. There is a person that threatens to end bending itself, the spirit world splits itself into their world, and it becomes common knowledge for many of her enemies of how to kill the Avatar permanently and stop the reincarnation process.
Which happens when she’s almost poisoned. I knew she’d survive but I did feel very terrified for her.
Sure enough in the last season, we see her go through depression and PTSD for her very close encounter with not just death but the erasure of her future existence.
But at the end of the day, she always manages to win.
And surprisingly, she ends up with Asami Sato at the very end of the series. While female bisexual characters are getting more common in fiction, it was pretty bold of Nickelodeon to feature a series with such a prominent bi character. Though I will criticize Nickelodeon as they tried to hide this during its original airing on cable.