I read the whole series as a teen, so it may sound or come out different from me than other reviewers. But as it is coming from a "teen", i found this to be extremely enjoyable. There are many flaws and weaknesses in this manga, but i seemed to understand why many called Toriyama, the creator of DragonBall, a genius. DragonBall surpasses all odds in its infinite path of making new friends, fighting new foes, and discovering new powers. In other words, you can call it the perfect raw shounen manga for younger audiences and perhaps teens like myself.
Story 9/10
To me this is both a weakness and a strong point of the series. Different arcs have different stories behind them but they all connect and make sense in the end. Although everything connects however, some parts seem like they lose understanding and basic common sense. Though rare, sometimes, the reader might feel or want to say "Well this makes sense, but why didn't they do this, or why couldn't they have done that before."
I do give the author credit though, for it is not easy to connect everything perfectly clearly with such a long series. I think the author balanced everything to work out pretty well.
However, when the plot gets really good into something you didn't expect, that's when the series really starts to shine. Secrets are uncovered and mysteries you could never imagine occur in this wonderful storyline giving it a solid 9/10.
Art 10/10
This one's quite obvious i think. The action sequences are very nicely drawn with wonderful design of landscapes and characters. Also the way the technology is drawn still amuses me :)
Character 9/10
First thing first, I have to say the way the characters were created and how it applies to them is pure genius. Absolute amazing creativity with variety as well. This series ranges from humans to saiyans to animals to aliens to different aliens to organisms to BUBBLE GUM. I mean BUBBLE GUM. If thats not enough of variety u also got two types (SPOILER* xP). A fat one and an evil looking one.
There is a backside to this though, which is why i rated it a 9 out of 10, and that is the character development. This seems to come out as a fatal flaw in the series. Important characters who were good friends of goku (SPOILER* xP) like Yamcha and Tien have seemed to lost their importance. Bulma who first discovered Goku, seems to have almost no part in his life afterwards. She seems to end up as the casual techno girl and cheerleader for Goku while he's fighting. But, even though there are some characters who seem to become unimportant, some new characters undergo a very nice change in development. For example characters like (SPOILER* xP) Vegeta, Piccolo, the androids, Buu, even Satan, seem to become important and likable characters in the series. Despite it's flaw in the development of some characters, it doesn't do quite much to affect the wonderful variety of characters and enjoyment in DragonBall.
Enjoyment 10/10
Really enjoyed this series. What more to say about it. x)
Overall 10/10
Don't get intimidated by the flaws i posted. (I'm just a mean reviewer :P)
Overall, DragonBall is a wonderful series filled with adventure and excitement. It's just incredible. You can't miss it!