Naruto
* Pros:
* Strong, well-developed characters
* Exciting, action-packed story
* Interesting and unique world-building
* Emotional moments that can make you laugh and cry
* Cons:
* Can be repetitive at times
* Story can be hard to follow for newcomers
* Some characters can be annoying
One Piece
* Pros:
* Incredibly expansive and imaginative world-building
* Epic, grand adventure story
* Diverse and likable cast of characters
* Strong sense of humor
* Cons:
* Can be very long and overwhelming for newcomers
* Character designs can be a bit generic
* Story can sometimes be predictable
Ultimately, the decision of which series is more popular is subjective. Both Naruto and One Piece are great series with their own unique strengths and weaknesses. If you're a fan of shonen manga or anime, I highly recommend checking out both of these series.