The 'One Piece' manga has made significant progress compared to the anime. The anime has to deal with production schedules and sometimes takes breaks or adds filler content, allowing the manga to advance further in the story.
The manga is way ahead. The anime often has filler episodes and slower pacing, so the manga has covered much more ground.
The manga of 'One Piece' is far ahead. It doesn't have the constraints of animation production and can tell the story at a faster pace. This means there are many plot points and developments in the manga that haven't been shown in the anime yet.