Comparing Speaker Cables

I'm a bit fan of testing speaker cables.  I tested Canare 4S11 vs Rocket 33s vs Kimber 12TCs.  I liked the Canare 4S11 - there was mudiness in comparison with the Rocket 33s and there was harshness in treble at times for the 12TCs.  Ultimately, I auditioned Kimber Bifocals and they provided a large soundstage with beautiful clarity and resonance on bells, symbols and bass guitar with sharp and clear kickdrum and tom toms.

How much it depends on system and user I don't know.  And I had a friend listen as well and we were changing things who came to the same conclusion on the 12 TCs and the bifocals truly were obvious (the cost is the challenge)

This is not so difficult. As someone mentioned, take copious notes.

But also listen to specific tracks over an extended period...allow yourself to get accustomed to one set of cables.

Then a after a couple of weeks, change cables and take more notes.

Quick comparisons are tough to quantify.

Be methodical and trust your ears.

I agree with @carlsbad in suggesting listening for a longer period of time than doing only quick A/B testing.

I find cable testing is extremely hard (or comparing any 2 components for that matter), especially when both cables are equally good but different in many ways.  A/B testing sometimes gives you obvious results very quickly, but when comparing 2 equally good cables with different attributes that you like, it does take longer listening sessions to sort it out.   I usually let the cables run continuously with music that I like and just listen casually.  Once in a while, something will catch my attention and I would take note of that.   This approach allows me to feel the musically of the cable and determines which cable draws my attention more and makes me want to listen more.

I'm actually going thru some listening tests myself for different interconnects.  Anyway, good luck with your testing.  

Trust your ears, just remove your eyes from the equation.

This is why cable companies give you 30 to 45 days to live with them. If you don't like what they are bring out of your system just return them. All cables are system dependent.