I borrowed another one of the fat magazines, to see what they are about: this time the June 2010 issue of Comic Alive. Not sure if it's specific to Alive, but most of the manga there is action, and now I know that I am not interested in it. The only series that grabbed my attention was "Non-non Biyori": a slice-of-life on papper, apparently. I guess that the title has to do with a loli character who ends all her phrases with "-non" where rules call for "-no". It has uncomplicated dialog and furigana, which helps, but most importantly the quality of art is a few levels above everything else in the magazine.
Here's a zoom:
For comparison, Asobi ni Ikuyo at the same sale:
Generally, there seem to be a bunch of "mediocre tie-ins" published. There was Kampfer, for example. AsoIku drew my attention due to the dialog between the apparent protagonist and the pictured lady with a scar, who I imagined being infamous Jens (but as it turned out her name was Maya). I think the knock-off mangas lag anime, let alone novels.
BTW, it feels quite weird to read off such big format. It is a help for my old eyes, but still, it just does.
UPDATE: The urgency has passed, but here's the picture that I promised:
First, you see Manami and Aoi facing off, then a break, the assitodroid, the guy, Maya, and on the next page is "摩耶さん、誰がを好きになったことはありますか？" and so on.
 Hair color is dark, but the guy was emoing in the closet by wrapping himself into a bedsheet -- who else would that be, right? Not that I want to know really.