Um, I have been wondering about this for a long time, not just in One Piece perhaps generally in manga, but One Piece seems to follow some rules even in this category. I noticed after Thriller Bark the arcs got smaller, but Oda threw in a lot of information in them, a lot of twists and the story seemed to be moving faster. Like SA, AL, ID, the war and post war, they did not exceed 30 chapters in length. Was Oda rushing with the war saga?
And well if we look at all important arcs before that, they were over 40 chapters, 50 chapters even. Alabasta, Sky island, Water 7 and Enies Lobby were all major arcs and over 40 chapters. And well I know Oda has mini arcs, they are around 15 chapters at most, Jaya, Davy Back, Drum island. It seems the war arc was made with a lot of "medium" arcs, and Oda seems to have gotten back on track with long arcs in the current one, with FI almost at it's 40th chapter it seems we are in for a long ride again, more adventure and more fun. Personally I prefer longer arcs, how long do you thing arcs from now on are going to be? I mean major arcs, and do you prefer them longer or shorter? Maybe start of with long do you expect FI to be?

