Classic Battle Royale

Zuko (Avatar) Disclaimer: I have NOT watched/read Vinland Saga, but plan to, and from what I've heard Thorfinn has a legendary redemption arc, and I have also not watched MHA.
1. Zuko: He is easily one of the best psychologically written characters, broken by his father, his morals, his lust for power, etc. and is one of my favourite characters in avatar, and his redemption arc and supposed 'failure''s juxtaposition with his sister's success was just great.
2. Kratos: No need to explain. He goes from a raging, unmoral man to a caring father and familyman and goes through terrible stuff.
3. Nolan: If you've read Invincible, I don't need to explain.
4. Vegeta
5. Flash
6. Loki
7. Picollo
8. Arthur
9. Loki
10. Harley (prob should be higher but I really don't like her)

Zuko (Avatar) Zuko has the best Redemption in fiction.

Kratos (Norse Mythology) (GoW) Kratos 1st place 2nd place arthur morgan