Do you know what would make an awesome story? Having one where he actually is just a droid built to think that way and runs into the real one while doing so.
The Real Skysaber of course argues that being the Real Skysaber is a matter of actions not body.
Or possibly one where he wins in a sacrifice play telling the villain 'We are defined by our actions. The Real Skysaber would win, and guess what I'm about to do?'
boom
Fade to black won and died doing it in properly heroic fashion.
Hmmm. I wonder what he would act like having fragmented and contradictory canon to base himself on.