These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Daily Lives Of High School Boys aka: Danshi Koukousei No Nichijou
Ensemble Darkhorse: Karasawa, the Literature Girl, Ringo-chan, Habara/Archdemon and NAGO. Several popularity polls in, and Karasawa and Habara in particular seem to have permanently occupied some of the top places [1]◊, coming in (as of the March 2012 poll [2]◊) in 1st and 2nd place, respectively.
Given Tadakuni has been seriously Out of Focus after the first volume of manga and the fifth episode of anime, his position in the polls—far beyond Hidenori and Yoshitake—also makes him one.
Shipping: If after the author's comment that the series is strictly a comedy with No Hugging and No Kissing, you'd expect that something like this wouldn't happen, you thought wrong. Indeed, there are several fan-favorites just from the anime alone, including but not limited to:
Hilariously all the pairings listed above (save for Karasawa) were featured in the episode 12 skit High School Boys and ... only to be sunk quicker than the Titanic due to the skit itself being All Just a Dream.
As homosexual ships are concerned:
All possible seme/uke combinations of the main trio are being shipped.
Motoharu and Karasawa
alternative title(s): Danshi Koukousei No Nichijou