You mentioned in number 4 how Katara lashed out at Sokka for not supporting her. I would also mention that brilliant dialogue:

To be honest, I like to watch avatar not because I grew up with the show, but because it is actually an amazing show that I take very seriously. Sometimes I forget that I'm watching a kids show.

"Aang?.......I'm not going to let them take you away from me."

My favorite scene was the suicidal moment zuko had when he screamed at the sky begging for the lightning to strike him. And when it didn't he just broke down that was deep!

Me: try not to cry, try not to cry, try not to cry, try not cry

Let's just accept the fact that Zuko is extremely precious and adorable.

Fun fact: Zuko saw the group of refugees in his alone episode (by the way solid episode) and was about to rob them but decided not to when he saw the woman was pregnant.

And my girlfriend became the moon!

Btw Nickelodeon needs to allow this show to go on Netflix

The scene where momo sleeps on appa's tracks still gets me. It's amazing how this series can give animal such character

The "Leaves From The Vine" part with Iroh is definitely a heart-breaker. I literally cry my eyes out every time I see that scene and hear that song. I feel so sorry for Iroh and the passing of his son. It's certainly one of the saddest and most emotional moments in this show.

One scene in particular I have grown to love is the ending of "The Blue Spirit". Aang sits beside Zuko as he regains consciousness and explains how he had a friend in the fire nation and even throws out the notion of the possibility of them becoming friends given different circumstances, then Zuko takes a wild shot at Aang. As Aang jumps through the trees, Zuko stands and watches, his facial expression exerting a sense of bewilderment and even humility. The swelling music of Uncle Iroh's Tsungi horn adds a chilling element to the scene. The cherry on top of it all is when Sokka asks Aang "How was your trip? Did you make any new friends?" and Aang softly answers "No, I don't think I did." The music swells, and the camera cuts to Zuko laying in bed, staring at the Fire Nation flag, then he rolls over. Establishing the conflict and turmoil brewing inside himself. Really powerful stuff, they just don't make quality entertainment like Avatar anymore.

Iroh Crying over his son SHOULD be no.1!

you want emotion? MY CABBAGES!!!!!!!!!!!!!