Lucki sta(Lucky Star) is a high school ladies stories.
There are no important things in the stories.
But it is well presented Japanese high school day.
Japanese has no Mr. and Ms.
Instead of Mr. or Ms., -chan or -san are used.
It is explained in the notes in front package of the English version.
In japanese, speaking is a little slow.
But English version is a little fast.
That is the main difference in Japanese version and English version.
In this series, Seiyu or voice actoresses are same as Melancholy of Haruhi and some dancing on the Meloancholy of Haruhi is on the scene. So I classified this to Haruhi.