I have more female villagers (6) than male villagers (4). My current villagers are Mitzi, Felicity, Blaire, Katt, Mira, Rosie, Rudy, Bob, Marshal, and Rizzo.
In Mystic, I realized as the town was progressing that I seemed to have a constant or near constant ratio of male to female, so I decided to keep it at 5:5.
For Piyo, I'm not as concerned with the ratio of guys to girls since it's a themed town, and the villagers fit the theme.
I actually haven't noticed the gender ratio in my town or gave it much thought before. Currently I have Julian, Chrissy, Francine, Apple, Mallary, Lolly, Wendy, Wolfgang, Sprinkle, and Ruby.
I'm more bothered by how many preppies I have in my town than anything, but I can't imagine letting any of them go. I get clingy ♥
I have more female villagers, and part of the reason is I really like the peppy personality. Then again, I really like the jock personality, too, so it went down to aesthetics yet again: I think there are more adorable peppy villagers.