I have noticed this about the characters I create.  Almost all of them are girls.  There is everything there from the cutesy Halfling bard to the in your face, balls the wall, I'll break your bones if you look at me the wrong way barbarian Goliath, but they are all girls.

Or most of them are anyway.

Why is this?  I am trying to understand why I make so few male characters, and why I prefer playing girls, in an attempt to make better, more compelling male characters.  I also want to improve all of my characters in general.

Do any of you feel drawn to one gender over another, and why do you think that is?

Personally, I lean toward the same sex as myself, or none at all (I really like warforged). This is because I would rather avoid playing stereotypes, which I feel would be likely if playing as the opposite sex.

As to your situation, how many campaigns have you been in? Were there many female characters in them, from your fellow players at least? If not, perhaps you are instinctively trying to provide a more balanced party, or at least a more media typical party (if you are the only one with a female character).
Or, if you frequently encounter situations you think girls/women are most likely to encounter or be better at, you might be playing to probability/optimization.

Well, it could be a lot of things, you haven't given enough information for me to come to any conclusions.  For me, I think of a character first, and then assign gender based on what I think will make for a more interesting character.  The result is exactly 50/50.  (I thought I leaned more female until I counted).  But I have two friends who play mostly females, and they have different reasons for doing so.  One likes women, wants to play a character he likes, so he plays a woman.  The other doesn't like being a man, he doesn't know if it's gender-dysphoria or self-loathing, but either way, he plays a female as a form of escapism.

Here are some questions that may help.

So at what point in the character creation process do you decide on your character's gender?

How do you define femininity?

How do you define masculinity?

How rigged are these definitions? How masculine could a woman be and still be feminine, and visa Versa.

How do you feel about your own gender?

I hope that helps.

If this were a video game question I'd answer that they generally have a smaller hitbox.

It's possible that you are emulating strong (physical/emotional/mental) female personalities that you admire from real life or books or movies.

"Write what you know." While that oft-common advice is not as simple as those four words, it's something that applies to me when writing. When including another person, I don't assume anything about the person. I don't know what the person is thinking or why. I have notes about thing that happened in the person's life but I still make no assumptions on how that has affected the person. As a writer, I'm more of an observer. Even when the story is from the viewpoint of one person, that is the only person I understand. It's rather schizo if someone thinks on it too much, but I'm not a god in the stories. I don't really know what's going to happen next. To the point though, I can't step into the shoes of a person I've never experienced. For such character, protagonists included, I write only as an observer.

Back to D&D, it's like a collaborative writing. I can only write what I know. I don't know what it's like to be a different gender, and I am telling a part of the story from the viewpoint of a character. I have to step into shoes of something more familiar to me from the inside or I feel insincere to project intentions that I can only assume based only on observation, not first-hand knowledge.

Other people seem to be able to jump into the shoes of anyone. I envy that ability. I simply don't have that ability. I think real life could be easier if I could do that.

Whether I play male or female usually depends on the game. Usually what I like or makes sense narratively.

In D&D I exclusively play male, it's easier to get into character when you have a piece of yourself in it and that's the easiest starting point. Also my voice is somewhat deep and I always try to voice my characters authentically. Now when it comes to say Dragon Age - In Origins I play either male or female, in 2 I only play female, in Inquisition I only play male.

As for why your having trouble making male characters here's a few questions you need to consider along Nunda's: Are you putting too much of yourself in the character? Too little of yourself in the character? Is your background story too short? Is it too long? Are you relying on Tropes? Are you excessively avoiding Tropes? How do you see your characters in relation to yourself?

I recommend talking to a therapist who can help you plumb all your deep dark secrets in private.  Not saying there's anything wrong with playing mostly female characters, just that if you want to really understand yourself, asking a bunch of near strangers isn't going to help you much and can actually end up confusing you with all the different opinions.  The real key to knowing yourself is really yourself; the therapist being the guide to help you on your long-term journey.

Have fun.   

I was the opposite. In Inquisition, the male Inquisitor didn't really flow correctly in the way I felt. It was the first time, when given the choice, that I chose a woman protagonist. The story felt more "normal" (as one could get in that story). That stated, those games don't feel like "my" story as much as mostly watching a character in someone else's story like a CYOA — not the way I prefer to handle D&D where it's "our" story.

To get around some of those questions of too much or too little of myself, I use an RNG method to set a starting place for a background and build what I feel off of that. (The character I like most went further beyond DDB to other RNG background generators and I built upon them, too, but in the end, it was a collaborative effort of RNG and my building.)

Quote from EricHVela >>

I was the opposite. In Inquisition, the male Inquisitor didn't really flow correctly in the way I felt. It was the first time, when given the choice, that I chose a woman protagonist. The story felt more "normal" (as one could get in that story). That stated, those games don't feel like "my" story as much as mostly watching a character in someone else's story like a CYOA — not the way I prefer to handle D&D where it's "our" story.

To get around some of those questions of too much or too little of myself, I use an RNG method to set a starting place for a background and build what I feel off of that. (The character I like most went further beyond DDB to other RNG background generators and I built upon them, too, but in the end, it was a collaborative effort of RNG and my building.)

The best character that I ever made, and the one I spent the most time and money creating - and enjoyed playing the most - was a male human wizard, who suffered from gender dysphoria.  Thus, he presented to the world as a girl, and her goal was to eventually learn True Polymorph so that she could make her outward appearance match her inner self.  Although the character looked very feminine anyway, she longed to be a "real" girl.

I spent months making that character.  Talking to people from the LGBT+ community about how they viewed themselves and how they felt as they went about their daily lives. As well as the prejudices that they faced and the difficulties and struggles they endured to be themselves.  I even wrote the character's story and came up with her appearance in conjunction with two Reddit users, who themselves suffered from gender dysphoria, and then had a professional artist, take that and create her artwork.

You can see her art here if you are interested.

Playing an LGBT+ character and interacting with and experiencing the world from that standpoint was immensely enjoyable. Unfortunately, the campaign I was playing in had to end due to a family situation my DM had to cope with, and then afterwards she started just doing one-shots because she no longer had to the time to write a continuing story; so, I retired my character and decided to keep her for when I get the chance to play her again. 

I love the character of Kerri so much, so much of myself and the people I talked to went into her creation and perhaps that was why she was such a lovely character to play.