Sorry for the late replies, I've been a little busy.

[quote=@Chaotic Chao]
[@GreenGrenade] I'm thinking Nightwing.
[/quote]
He's definitely an option. Gotta have some Dick in the house.

[quote=@Nightwing95]
[@Gowi]

Thanks for the info Gowi. But to be honest, I won't be choosing to portray both of them due to my schedule in University, so my first CS will probably be Lucius Fox and just stick with that, a supportive character instead of an active vigilante like Batwing. 
[/quote]
Lucius could work, but I'm a little skeptical as to what you'd do with him. Aside from giving Batman tech and running Wayne Enterprises, I'd assume you'd want to write less mundane stuff with him. Do you have something in mind?

Now, I think there's been a bit of a misunderstanding, and as such I apologise. This RP is one in which players write as canon characters, not OCs, so unfortunately neither the rival competitor concept or any amalgamations would fit into the setting. There are plenty of characters that have called Gotham their home, so I'm sure you could all find someone that fits your criteria. I hope this clears things up a little. Cheers