I've tried a bunch of copper, silver plated copper, and all silver cables. Cables by DH Labs, Morrow, Harmonic Technology, Synergistic Research, XLO, Core Power Technologies, Apature (silver), Silver Audio, White Zombie, etc.
I generally favor the pure silver cables. I landed on Black Cat Silverstar 88 silver cables for preamp to amp and dac to preamp. I also recently discover Graham Slee CuSat50 cables which are all copper. Using it between my sacd player and preamp. I like it so much that I ordered another pair from the UK to try between my phono preamp and preamp.