Disclaimer : All of this are my personal opinion and is not intended to offend anyone by any means.
Story : 7/10
In regards to the storyline , I'm generally okay with it as unlike the other two popular shounen series like Bleach and Naruto , One Piece has little fillers (don't even get me started on Naruto please). And the anime follows the manga almost strictly in terms of storyline. I would have given it a higher mark if not for the animators screwing up the Hody VS Luffy fight. It made Luffy look superbly WEAK.
Art : 2/10
One Piece is generally infamous for it's simplicity in its drawing and many people simply cannot get used to this , often irked by it compared to other animes/manga with great character designs and such. However , since the anime follows the manga , I will not fault the anime for this.
However, what's really nerve-wrecking is that the animation and drawing is shit. Pardon me but yes. Just one look at the Sabaody Archipelago arc almost gave me cancer literally. I guess that's what happens when all the senior animators are dispatched to work on the movie and the juniors are free to do with the anime. I could still list a bunch of arcs with simply horrible animations that looked as though the animators wanted to be just be done with it and that's all. (Fishman arc for example ; biggest let down of 2013 after all the finishers looked like shit) Other than that, hardly any animation in this series is worth-noticing.
Sound : 6/10
The soundtracks are generic and the only ones that really stands out from the rest is probably The Very Very Very Strongest and Luffy's Fierce Attack and maybe Giant Stronghold Takeoff. But just these three tracks itself is not able to carry such a long anime and it gets seriously repetitive after awhile.
As for the openings and endings, sorry to say but I'm not a fan of any except for Share The World. I would have given it somewhere along 3/10 if not for the voice actors.
The voice actors themselves. All I can say is , hats off to them. Let's start with the notable mentions.
Luffy - Godlike contagious laughter and epic speech (very very very rarely). Job well done for voicing the goofy Luffy and I wouldn't be able to find anyone else that could possibly do a better job than Mayumi Tanaka. All I hope is that the voice actor lives to voice the remaining of the series (not cursing but she's getting old and the series still have a long way to go)
Zoro - Needless to say , epic speech , epic speech everywhere. There's something about his voice that makes almost everything he says so much more epic than any other character would. " I got on the wrong ship. -_+ ". Probably the only character that can make something that silly sound cool. Legit.
Usopp/Sogeking - Do I even have to elaborate? This guy is freaking hilarious along with a contagious laughter and his awful screaming. And oh , the most memorable scene ? Arabasta and Enies Lobby speech about Luffy. Nuff said. Sogekinguuuu!!
Chopper - This is a honourable mention because I cried at his past. No joke and his voice actor who happens to be the same seiyuu for pikachu did an extraordinary job voicing him especially during drum island. You could feel the sheer emotions coming out from her voice when Chopper starts to cry.
Brook - YOHOHOHOHOHOHO!
The rest of the characters were pretty average or nothing note-worthy. (Buggy is an exception to this though). This is the reason why the sound gets a 6/10 instead of a 3/10.
Character : 8/10
Like the manga series, each character are given a single arc to tell their past and such. After that , each character slowly gets developed and there are evident character development. One notable example would be Zoro who told Luffy when they first met that if Luffy were to do anything to hinder him from becoming the world's strongest swordsman , he would kill him. However as time passed , Zoro began to respect Luffy as the captain and would even lay down his life for him if needed (when against Kuma).
Each character is also diverse and unlike other anime series that have a huge cast , all the characters are not just a vase as they contribute to the series greatly as well instead of just giving one liners just to show their 'presence'.
Enjoyment : 3/10
The enjoyment of this anime , sadly to say , does not live up to the story and character because of the crappy art that really put me off. But that's not the worst thing , it's the pacing that killed this anime. Toei strictly abided by it's ground rule that an One Piece episode must follow exactly one manga chapter which probably caused this downfall of a great series.
Although the manga is well-paced, with the author taking seldom breaks because of his family and health issues, the anime did no justice to it because of the ridiculously slow pacing. And because of the pacing , the Whitebeard war that was absolutely amazing in the manga turned out like shit in the anime. The art was pretty decent there but the pacing.. oh god. I think I heard Luffy screaming Ace's name for over thirty episodes and a part of me simply just died.
If only if the anime could pick up the pacing and do probably something like 1.5chapters/episode, or maybe improve on it by adding additional dialogues for each character which I definitely would not mind instead of showing characters running around doing nothing or FLASHBACKS. That would be great. Don't get me started on the censorship please.
Overall : 3/10
It's a shame that I would have to give this great series such a low grade but as things stand. It's not worthy of any higher marks in my personal opinion. Unless the anime can do something about the horrible pacing , this is the final score I would give this series.
And yes, I'm heavily biased against the anime because it simply does not live up to the manga like most animes. For those that have not check the manga out , do it and you would probably find better enjoyment than wasting twenty minutes each week just staring at characters running about doing literally nothing and the plot progress like a snail.
