Welcome to the forum MYT1.
I consider your questions to be valid for someone just getting exposed to Fiddleback knives.
Bark River knives were my introduction into better quality fixed blade knives starting about six years ago. I bought and sold quite a few and I still have a handful of favorites. I even have a filet knife on pre-order from them now. They make a nice production knife that will serve most users well. The steel blanks are water-jet cut and the handle scales are CNC machined, which makes them exactly the same for the most part. All the interim processes are done en masse so the whole shop is working on a batch of the same model at any given time before moving on to the next model. That is the nature of a production (or semi-production) business model.
By contrast, Fiddleback produces approximately 20 to 30 knives per week of mixed models that are completely hand made from cutting the steel blanks from sheet stock, pre-grinding & drilling, heat treat in-house, handle fitting, final shaping, blade grinding by Andy personally, and final finishing. A few things that separate Fiddlebacks from Bark Rivers are; beautiful spalting on the blade, perfect even grind lines, and handles that are hand contoured and shaped like no production knife can match. Each one is unique because it is hand made. You also get beautiful micarta or G10 liner material that looks way better than the thin vulcanized material that Bark River uses for liners.
Take a close look at this photo of a Bark River Ultra-Lite Bushcrafter next to a Fiddleback Hiking Buddy. I think that you will notice some of what I am talking about.
Good luck with whichever brand you choose. I think that you will understand what we all talk about here and be very impressed if you choose a Fiddleback.
Phil