Kyou Kara Ore Wa!! (KKOW)
I recently watched this 10 Episode OVA series about a month ago; and really enjoyed it, it was reminiscent of Great Teacher Onizuka, Beelzebub, and many other Delinquent-styled anime. The length of it is a great thing; each episode varies in length therefore on average they are 43 minutes per episode, some are 60 minutes and some are 35 minutes.
Story : 9/10
The story is mainly about Mitsuhashi and Itou as they pretend to be delinquents, it can be funny at times, and at other times it has a good plot however the plot is usually episodic (only lasting one episode at a time, however develops the characters). There was atleast one Arc i would say, that was a story where it was more than one episode consisting of the same story (it took more episodes and time to fill it in).
Art: 8/10
The art isn't the best, however this is an older series released between 1993-1996, therefore the art is okay for it's days and doesn't deteriorate the quality of the show.
Sound: 9/10
I do not speak Japanese; however i feel that the Voice actors potrayed each character very well and it made the experience much more enjoyable, there is subtle background or theme music i remember too that was enjoyable.
Character: 10/10
They really do a great job of developing the main characters Mitsuhashi and Itou. It becomes extremely enjoyable every time you here someone scream "Mitsuhashi!". There is also alot of side-characters that were developed well that make this anime alot more enjoyable such as Imai of Beni High.
Enjoyment: 9/10
Honestly, this anime OVA series was really good especially since it is easily over 20 years old from now and i just watched it less than a month ago. I still was able to get tons of enjoyment out of it, as i said earlier its similar to other delinquent anime and kind of reminds me of Great Teacher Onizuka. I'm very glad i watched this series and i highly suggest you do too.