I loved Dock/Xu/Bushi from the moment he appeared. He looked like he would have an awesome personality. I know he only appears in the episode "The Painted Lady", but he was still ranked 5 for me. He has an awkward, crazy personality as of having three in one. I loved it when his third personality, Bushi said this line: "Dock's a crazy!". And he's all three, so he is crazy.
Sokka's friendly, upbeat, and funny with a clumsy streak. Sokka is just like Stella in Winx Club, they both always try to cheer up their friends. Sokka has an extreme interest in weapons, and always try to battle in a fight, but he just seems can't doing it. Although he can be very distraught when he can't help the team, he's still happy-go-lucky.
I used to dislike Katara very much, but now she is my third favorite. Katara is very potential, motherly, and always try her best. She can be dreadfully annoying sometimes, but however, what she's saying is right. She's very rational in my opinion. Though...