Son Goku (Evolution, 2015-2018, and 2021)

Son Goku born Kakarot is the main protagonist of the Dragon Ball series. Goku is a Saiyan originally sent to destroy Earth as an infant. However, a head injury at an early age alters his memory, ridding him of his initial destructive nature and allowing him to grow up to become one of Earth's greatest defenders.

While he was well known and liked in the Dragon Ball series from the 1980s to mid-2015. He want downhill as Dragon Ball Super is released to the point that fans starts to hate him due to this.

Bad Qualities

 * 1) Goku has now split into two version of himself in the anime and the manga both are flanderized into near character assassination.
 * 2) * Toei Goku which most Dragon Ball fans like to call him in the anime is not only dumber but also does not take anything around him seriously. He even unlearns thing he has in the Dragon Ball series like doing the same thing over and over again. (e.g He unlearns about not playing around with the enemy that he learns from the Freeza Arc) In the Goku Black Arc he forgots the senzu bean and the thing to contain the pot.
 * 3) * Toyotaro Goku from the manga has the same problem with Toei Goku but not as dumb and more serious then the anime counterpart. However in the Moro Arc he gives the senzu bean to Moro not knowing that he can kill everyone.
 * 4) He becomes more selfish to the point that he even does not care about the earth or the universe as he wants a good fight.
 * 5) While Goku is not a perfect father in any means he does care for his sons and a daughter in the old Dragon Ball series. But nowadays he does not even care about them as well.
 * 6) He is now a spotlight hog along with Vegeta (Though that problem dates back to Dragon Ball GT he at least has a personality in that series)
 * 7) He does not take any criticism as he said he will improve but as mention in point 1 he does the same thing again.

Good Qualities

 * 1) Toei Goku thankfully becomes like himself again in later half of the Goku Black Arc. The tournament of power and the Dragon Ball Super Broly is when he rerailed back to his DBZ self.
 * 2) He still has good moments even today.
 * 3) He was a good character back in the DB-GT era of the show.
 * 4) Masako and Sean still does a good voice of Goku.