These are top 20 Most well written Anime protagonists (manga excluded),
They will be based on Writings.

Format:- Character name - Nickname - Iconic Line - anime name.

20. Tomoya Okazaki - Delinquent - "Cry when you still have time, when you get older You might not be able to cry with a reason"- clannad after stories.

19. Hiroshi odokawa - The Taxi driver - "Finally, i saw the world as human ... First time as myself" - Odd Taxi

18. Violet evergarden - my future wife - " i want to know, what love truly... Means" - violet evergarden

17. Edward Elecric - Pipsqueak- "A lesson without pain is meaningless" - FMAB

16. Watashi - Me - "World is too cruel. It keeps reminding me of how pathetic my life is even if I keep my self in delusion of me improving" - The tatami galaxy

15. Ginko - mushi - "Don't let yourself be blinded bt fear, anger. Everything is as it must be" - mushi-shi.

14. Johny Joestar - JoJo - "This tale is of me starting to walk.. from adolescence To adulthood" - SBR (only in 8 days btw)

13. Spike Spiegal - swimming bird - "Whatever happens, happens" - cowboy bepop

12. Eren yeager - Freedom's slave - " i will move forward, until my enemies are destroyed" - AOT

11. Shinji Ikari - the depressed child - "Nobody wants me so They can All just die"- NGE

10. Rudeus Greyrat - symbol of pedos -"That journey, it felt Incredibly Impossible To take every step on. However every step was important. Not just for my loved ones, but for myself. I guess people don't change Even when they get 100 Reincarnations, unless they want to change themselves" - mushoku tensei
{Based on novel}

9. Lelouch Vi brittania - Magician of justice - " i destroy the world, to create it anew".

8. Okabe - mad scientist- "failed futures, Pasts never recovered, all of them, every worldline i see. I got it ready for me. Im going to leap again... Behold my way to STEINS GATE".

7. Guts - Black swordsman - "Why do i never realise something unless its lost?"

6. Tenma - hope in the world of despair - "World is not a Dark place. Thats a lie. Tommorow will be a good day." Monster

5. Kiriyama Rei - Zero - 3 gatsu no lion

4. Thorfinn - Warrior of temperance - "No one is my enemy. I have no enemies" vinland aaga

3. Joe yabuki - the messenger Of **** - "FUWAAA AHHHHHHHHHHHRAHHHHHHHHH"
-ashita no joe

2. Gintoki - White yaksha - "stop being a stranger. Cry when you feel like crying. Laugh when you feel like Laughing. When you tear up and make a ugly face, i will give you a good cry with an uglier face. When you're Laughing So hard your stomach burst, i will laugh even Louder in a more stupid way." - Gintama

1. Reinhard Von Lohengramm - The golden Lion - "There is a great Jou for the sake Of gaining power , but its eternally Joyless to fight to maintain it." - Legends of galactic heroes

0. Fang Yuan.

Source -
larping federations