TO Tls49, Yes, sometimes frustrated, but I think we are all victims of a business model that makes it difficult to find the right combinations of components, and especially cables. This is mostly the consequence of the "business model" that evolved with the audio industry. I can offer more conjecture about this model but I said my piece. However, I will poke fun at the structural inconsistencies of this business/hobby.
However, to answer your question. My system has changed in the last five years. The Acoustic Zen Hologram 2 is excellent cable, but difficult to live with because if its girth.
Overall, I would say the Analysis Plus Oval 12 speaker cable was very enjoyable, and seemed to get better with every listening session. But I upgraded speakers from the Silverline Prelude II to the Acoustic Zen Adagios, and quickly realized I needed a better cable. I then bought the AZ H2's whose inner detail and midrange were exceptional. Unfortunately, in my room the cable provided a narrow soundstage that never extended beyond the speakers's outer boarders. So now, and after about 2 years, I continue to use the Audio Art SC-5(entry level stuff) speaker cable. It is good to very good, but I am not sold that its bigger brother, the SC-5E is necessarily better at three times the price. Thanks for your response and advice.