Simple. If you like him, play him. That's why I chose Ragna. Sure there's a ton of them out there, say, online, but I typically beat them, and get complimented on mine. Like the others said, you gotta separate yourself from the others by being better than others, or even just by something unique you do.
For example, I have yet to face another pink Ragna online. Pink's my color for Ragna, don't use any others except when playing friends. The pink outfit stands out quite a lot, so its easy for people to remember me and associate me with that pink. I guess. I play pink Captain Falcon too. All my friends recognize me for that.
To further add to that, Kaqn, a Ragna player, always uses white with Ragna. In Shift I've seem him use others, mostly pink, but I and my friends now associate the white Ragna with Kaqn, I even go so far as to dub the white costume the "Kaqn the Bloodedge" costume.
I think you should stick with Bang. He seems perfect for you, both in gameplay and in personality.
TLDR: do what you want. continue to use the same character, or dont. However, you aren't allowed to use Jin. if you do, I'll hate you.
Last edit and I swear I'm done. You complain about whoring, but you secondary Jin. lolololol. So again I say, do what you want. Except play Jin.
There's my longass philosophical nonsense for the day/night.