You could rock either one. It is always cool to have hair that works for a cosplay. then you don't have to deal with wigs. But wigs can be fun too.....Hmmm
Go with who ever you would have the most fun with, regardless of if people know them or not
My vote is for Ezra, just because she's kind of badass. The armor would be pretty boss to have, but also kinda difficult.
You could always pick the Harvey Dent way! Just don't get half your face burned off....