Oh yeah, I also have to say that Thriller Bark restored my faith in One Piece.
As I mentioned before, Ennies Lobby got me disinterested in One Piece.
So some 2-3 years later, I picked it up again. I was so anxious while watching Thriller Bark, thinking that something BS was gonna happen: the strawhats would asspull an attack on Oars, or the strawhats would decide to fight Gecko Moriah because Brook was their "friend", etc. But luckily, Oars kicked their ass, allowing Nightmare Luffy (which is probably one of the best transformations I've seen in any anime, just because of how much it works within the plot), and the strawhats decided to fight Moriah because they knew he was horrible person who needed to be taken down (the old man and Brooke's suffering was a very legitimate reason).
It worked, like how a good story should. Plus the storytelling is an example of what makes One Piece, One Piece. The story progressed in a way that shows that Oda really spent time planning and proofreading literally everything in the arc; from the laws of the shadows to the situations the characters get into.
For instance, Oda - and the viewer - know that Moriah is a powerful, important character. You wanna know why this is significant? Because characters that are important should be doing things independent of the main characters. And that's what happened in Thriller Bark; the characters dictated the story. **Characters should dictate the story.
EDIT:** The only reason why I wouldn't give the arc a perfrect 100/100 is because I disliked the way Oda handled Bartholemew Kumatowards the end of Thriller Bark. Though, I'm only on early Marineford so maybe they explain it.
lol, I think I'm your mortal enemy. I'm the complete opposite in that Water 7/Enies Lobby solidified One Piece for me as a great manga while Thriller Bark made me lose interest again up until Kuma's appearance, which imo was great.