it's best described as an OP fangasm spread through an entire arc, when it was first released and I was waiting for chapters and than shi?t went down every chapter the fandom was going completely mental
if you want numbers, MF increased yearly sales for One Piece to 37 million in Japan and beat pretty much every other best selling manga COMBINED at that time
and than chapter 574 HOLY SH??!!!!!!!!!
Marineford starts at ep. 457
but it's not the only arc after Enies Lobby that blows you away, there are a few more and the current arc has the potential to be as good if not better than Marineford
just look at it thist way, all the best plotlines and the most epic characters are still to come, after you end Marineford remember that Oda said that was just the side trip the real war will come at the end ... jsut the thought of that gets me so fkin hyped