Okay Claymore is one of the best if not the best in terms of balancing action and plot development. The story takes place in a country where monsters called 'Youma' feed on humans and that is where the introduction to the main character Clare is made. There is an organization that recruits and trains young female warriors (half-human, half-youma) in order to fend off the population of Youma, however they do this service for a fee. Clare is one of the so-called 'Claymores' (nicknamed by the villagers because of the weapon they carry) and simply enough she carries out orders from the organization. However like I said, Claymore is an excellent example of a manga that excels in plot development, so the storyline splits into different perspectives as sub-plots begin to emerge.
The story is definitely the highlight of this series and in my opinion it just gets better and better. The first couple of chapters introduce you to the scenario and then details of the organization are revealed as well as new characters. You can never really anticipate the events in the next chapter, its really a captivating story. I'm not saying its far fetched even though it is shounen, but the logic behind the plot itself is amazing.
Nohiro Yagi is an amazing artist as well as a writer. He portrays the Youma as one would imagine them to be, but he does not spare the details. Each one is different and the creativity speaks for itself. The Claymores themselves are female warriors and they fit a certain description, so they all have similarities. The amount of artwork put into each chapter makes it really easy to follow the events so its not only captivating but also helpful.
This is the only section where Claymore does not get a 10/10 from me. The characters themselves are introduced, but not much about them is known, save a few like Clare and those close to her. For the most part, character development is lacking to some degree and I would like to see more personality from some of the Claymores. Some would argue that they are partially human, but they do have a human conscious and share the same emotions. Even though this is something that could be improved upon, its just a small kink in the overall aspect of the manga.
As you read the manga, you will find that the character development shadows the story and art so that they are closely related. Everything in this series is perfectly intertwined and its definitely one of a kind. I might be biased because Claymore is the best manga I've ever read, but I assure you that it will not disappoint. It never gets repetitive and each chapter leaves you waiting for the next. Even though the chapters are monthly, its so worth the wait because there's nothing like it out there. I would recommend this for anyone who likes to follow a deep plot accompanied by some intense action..oh yeah and female warriors (did I mention that?) :)