I just finished rereading Naruto a few days ago and despite it being shorter than One Piece I would consider it significantly better in almost every way. Whether it's the akatsuki being an amzing cast of villains on top of insanely great individual villains like Orochimaru, pain, Madara etc, the fight choreographies and just how much creativity Kishimoto put into his power system albeit not being perfect since genjutsu was a bit underdeveloped, the investment into the events and characters and so much more.
I can however, confidently say that Kishimoto could have done a better job at world building, although we meet plenty of shinobi and factions from villages other than Konoha, the actual places were barely shown making Naruto's world feel a bit empty, atleast for me, this is one area where I have to admit Oda did it much better.
One Piece's lenght is also a detriment, although it's fun to follow the Strawhats for hundreds of chapter, admittedly it's not necessary for a manga to exceed a thousand chapters, especially when you consider just how much time Oda wastes on things that aren't necessary. Just look at arcs like Dressrosa or Wano, the amount of plot threads and characters being involved is abysmal and only distracts from the stuff that we actually want to see and that progresses the story.