Kai is even better in English than it is in Japanese. It’s also objectively better than Z up until the Boo Saga, which is a disappointment but still subjective when it comes to being better or worse than the Boo Saga in Z.
One Piece’s or Fairy Tail’s?
Both art styles are similar, but I think that Fairy Tail’s is better, because it looks more like an Anime, while One Piece looks more like a Cartoon.
Super Boo is stronger than Kid Boo in the Manga without a shadow of a doubt. The same goes for Kid Boo absolutely being stronger than Super Boo in the Anime too.