It's not a ripoff, the author was influenced by Dragonball.
And the fights are way better as is the lore. Which is sad, because it is embarrassing to say you like Naruto in real life.
The fights aren't better. Some are nice, just that it can't compete with all the crap dbz pulls
I've been watching Kai. Most of the fights are:
-THAT KI IS HUGE -power up -that KI IS EVEN BIGGER! -rag doll effect -Goku, Vegeta, Piccolo or Gohan step up -THAT KI IS AMAZING -fight -Power up to 100% -KI KI KI THAT CRUSHES THE EARTH BELOW MY FEET -fight that finally ends the battle