DIY Power Cables Instead of Used

Good Day All,
     I'm hoping to gain from the benefit of your experiences comparing power cables, or your knowledge from extensive reading.  I'm leaning heavily toward DIY at this point, but am always open to overachieving reasonably priced new from authorized U.S. distribution or European channels.  Though I was originally very big on shopping mid to high end pre-owned power cables, I am no longer entertaining the used market for this purchase.
     I ask that you please share what your observations of a brand/model are, rather than just throw a brand name out and say you recommend it.  Any help you could provide is greatly appreciated.  I'm seeking to upgrade the power chords on all of my components and am already working on installing direct circuits from the service panel, with audio grade receptacles.
     Thanks ...