There seems to be a whole lot of folks who think they will find the "perfect defense gun" and they will be golden. There are a lot of diverse choices, some better than others but by far the important boxes to check are availability, reliability and performance. Having a gun at the ready that will not malfunction and being able to make the hit will beat the opposite every single time. The "perfect defense gun" in the gun safe, or without a round in the chamber, or being unable to effectively deploy it in time all result in a fail during perhaps the most important 3 seconds of your life.
The hammer was an IDPA analogy. These guys live and breath shooting, specifically defensive shooting. You will find matches are dominated by Glocks, then 1911's and a very small minority of everything else. Choose a weapon that has proven itself and get on with the real business of learning how to use it in defensive situation. Showing up with something from Star Wars might draw a few chuckles. That could easily be overcome if you out shoot them, Good luck with that.
I can remember drawing some laughter myself. Draw and fire and all you hear is a click. You hear the laughter and look around and see everyone smiling, nodding their head and saying "Been there done that". Same holds true when you draw and fire and hear the bang but your magazine flies out ten feet down range. If you have never done either of these you just have not shot enough. You acquire procedures that greatly lessen the chance of these errors occurring.