@OP, though they don't seem to have a big market presence in the US, Van den Hul cables are quite resolving and definitely not bright. The mountain interconnects and cloud speaker cables are excellent. Some people find them too soft sounding but one person's soft is another's natural/uncoloured so, as always, people's preferences and perceptions differ.
Choosing new cables
I am looking to upgrade my current cables. This should be my last system as I retired a few years ago and most of my components have been seriously updated in the last couple of years. I have been in this audio hobby for about 50 years and have always have great sounding musical systems.
My current cables all work and sound great but are 15 - 20 years old. So updating is what I need. I am budgeting around $10k - $15k for all new cables.
I have always felt the i/c's were the most important cable followed by the speaker cables and the power cords. However I am now leaning towards spending more on the power cords followed by the speaker cables and last the i/c.
I know all cables are very important but how would you prioritize the cables? Any suggestions on any brands would also be appreciated!