Both manga are the same in terms of genre and style. They both record the daily lives of the main characters but their opposite in terms of the actual characters. Danshi koukousei no nichijou talks about the daliy lives of boys. Lucky Star talks about the lives of high school girls.
Yeah I totally agree with this recommendation. Both series are quite similar in many different ways.
Meet Yotsuba Koiwai, the strangest little girl around. With a mind so straight it's twisted, Yotsuba takes everything in life at face value and sees everything with the eyes of impenetrable innocence. With her laid-back father, Yotsuba moves into a new house and makes new friends - friends whose minds boggle at the wacky and somewhat wise way that Yotsuba lives her daily life!