Here is the moment that made Dudamel a celebrity: conducting West Side Story's Mambo, with the whole orchestra dancing while playing.

Today there are no conductors treated like rock stars, but some opera singers are (like Jonas Kaufmann or Anna Netrebko).

Yes, this show had a focus on women. There is no other show in history where you have badass old women (Toph), badass middle-aged women (Lin, Su, Kya), badass young women (Korra, Asami, Kuvira, Zhu Li) and even badass female teenagers (Jinora) and kids (Ikki).

Watching the episode again, I love how they kept true to the characters until the end. Chief Beifong had a huge arc, but she was still alone at the wedding party.

What happened with Kai is very easy: the writers realised that Su was a much better character, and she took his time in Season 4. Oddly, considering the first is a cute teenager and the second a 50-odd woman.