I'm gonna be that guy and say that I'm playing a male for obvious reasons. Much like Hudsonbay said above, however, I'll likely be naming my character Sol or something Solar related.
'Cause y'know; 'creativity' :P
Edit: Really hoping for Trainer Customization. It's something I feel ORAS lacked, where X/Y excelled. Maybe you can actually choose from a group of pre-designated pallettes in the beginning, instead of three default options. Nothing annoyed me more than having to wait to get to Lumiose City to get those contact lenses, just because the default option I chose didn't have it. Or to change my hair color.
It's also a stretch, but following Pokemon would be a nice thing too.