@jasonbourne52 ... Naah.... everyone is already accustomed to you polluting every single cable forum, so carry on.... do what you gotta do. Nobody cares
For the topic at hand, yes, I agree with the OP, and I have experienced the same over the years, some manufacturers do certain cable types better than other types, to my ears that is.
Some examples: Cardas does a great job with interconnects and speaker cables, not so much with the power cords. Shunyata is excellent with power cords on the other hand. Hopefully I am not pissing someone off.