I think it is dependable on the situation and total sum of all cables and gear used.
Some brands certainly have a cumulative effect on certain qualities when used as a complete loom and there are always cable brands that won't combine well with another specific brand.
But using only one brand in your system does not mean you will end up with all the desirable qualities you would like although you might have fallen in love with the cable brand, thus some mixing will be needed.
Besides that some brands that make very good signal cables are not very adapt at power cables and vice versa imo.
Some brands certainly have a cumulative effect on certain qualities when used as a complete loom and there are always cable brands that won't combine well with another specific brand.
But using only one brand in your system does not mean you will end up with all the desirable qualities you would like although you might have fallen in love with the cable brand, thus some mixing will be needed.
Besides that some brands that make very good signal cables are not very adapt at power cables and vice versa imo.