>>28771199Depends on how present the opposite gender is in the story. In ORAS May was very prominent, so it was worthwhile playing as the boy to interact with her.
Meanwhile in XY your rival didn't do all that much and Serena got way more clothing and customization options, making her the better choice.
Judging by what we've seen it doesn't look like the female player character is even around if you choose the boy. So, female most likely.
