I've always had more guy friends than girl friends.  I just don't have much in common with most girls, so we tend to have nothing to talk about, and when I'm in a group of girls, I feel like a total outsider, like I don't belong at all.  I find it a lot easier to talk to guys because we tend to find the same things interesting, and I've been lucky that I'm usually accepted as one of the guys without issue.  But I've been friends with a few girls who don't fit the stereotype, and I've also always had friends who can't really be defined as boys or girls.

I'd have to say that growing up a majority of my friends were male but I did have female friends...
Now though, I find I have a lot of female friends. I do have quite a few male friends though. For me its more about personality

I think its about half and half.

It almost always has been. 

When I was in high school I had a healthy mix of male and female friends, but I found that I got along much better with those who acted in a more masculine/non-gendered way. I really didn't "get" girly girls and found many of them to be shallow and uninteresting, but maybe that is just because much of the time the girly behaviours immediately annoyed me so I never gave them a chance. But I also have a tough time in the presence of really manly men (hot-headed, hyper masculine, farting, loud, rude). I guess I just really dislike the gender extremes and prefer people who are more in the middle.
Currently nearly all of the friends I see on a semi-regular basis are men. My friends are in that age group where being in mixed company (men and women together) tend to cause issues. Men compete for attention of the ladies, ladies get jealous of the attention other girls are getting, and I get stuck with people being unsure what to feel about me, but me getting irritated and depressed that I tend to become ignored.

Always had more guy mates than females. It's still very much the same. Although my best and closest mate is female, she rocks!

Growing up, I was friends with mostly guys. But really, I would be friends with anyone who wanted to be friends with me. I was like that until a year ago when I got all insane and decided that I can't be friends with new people unless they know absolutely nothing about me other than the music that I like. lol So now I have 1 female friend and 1 male friend. I'm starting to become friends with another girl who I lost contact with for a while though.