Name a canon and I'll tell you who I'd play from it. Or if I'm blind, suggest somebody I guess because it'll be awhile before I can research this stuff.

I will play Hyper Metal Sonic from that really bad OVA

Or maybe Shadow I guess. I could probably pull him off.

It hard parts that I like but overall... eeeh

Then again it might not have helped that I saw the dubbed version and I wanted to stab my ears.

I'm a little surprised to hear that that's the one thing universally accepted though.

Suppose so.

Anyway I was mostly joking but if I'm being honest I am kind of a sucker for evil doppelgangers seeking out their own identity.

Googled that. Might be interesting

Guilty Gear

I don't really know that one. Make a suggestion or I'll go try to research

I'd suggest glancing through the tropes page and see what hits