LogFAQs > #931007408

Almost entirely depends on the designs (and voices if applicable), but plot impact/romance options/etc are actually bigger factors when present. In general, I find myself agreeing with the notion that female options generally have more effort put into their designs, which can lean me in that direction. If I don't have a first glance preference on designs, then I just go with the default (which tends to be male in my experience). Overall, it probably comes out about 50/50 off the top of my head.

Of note, if I play a game multiple times, I'll always go with the choice I didn't make the previous playthrough. And if there's any depth to customization, I'm 50/50 on picking which default I like better or spending a fair bit of time actually finding a customization I like without caring about the character's gender. If I can customize multiple characters, I'll generally 50/50 split male/female.