we can never know !!
but i think it's guys
i dk why !

i'm a girl, and i love manga. i read many different genres....

i would say its pretty close, guys have anime and comics, so girls have manga,maybe...
i'm a girl so . . .

i think that its girl who read the most manga, since there are great quantities of shoujo manga out there, but still i think that the audience is pretty close in numbers

well it depends on the genre,
but i think its mostly girls

maybe girls

Mostly girls. There's even a article about me in my local Newspaper last time.

Here its Mostly Girls

i would say equal ratio >.> since i know some girls who reads only Shoujo (like me >.>) and some guys who reads only Shounen
There are alot of people reading different genres so.. its hard to say. XD

girls, but i dont really read shoujo, i'm more into shounen and sports ........

i think girls but idk mabey so older guys ...

girls, from the websites i go to i find a lot of Shoujo, Shounen Ai, and Yaoi .....i tend to hate Shoujo thought....they all seem the same to me and i'm not a big fan of shounen either.
the stuff i read are like MPD psycho, Biomega, Count Cain, hellsing.....fairy tail and Kuroshitsuji are the only exceptions of shounen.

i hope that doesn't make me a weird girl....

Really? I thought for sure that there were more guys who read manga, considering how popular Weekly Shonen Jump is and how some of the most popular series on the market are shounen.

i agree it does depend on your area cause i tent to like mostly Seinen manga with dark plots and dark humour. But on a serious note thats a tough question.

My guess would be that females win in numbers by reading more but the guys who read tend to collect more then females do.