I like a noise-rejecting braided or woven bundle of various gauges of solid core wire. Examples include Kimber, AudioQuest, Cardas, and the Zu I have, which even varies the metallurgy and dielectric among the individual strands, and PS Audio XStream which I also have, but is no longer made.
I also have a subwoofer cable by Analysis Plus, which is woven copper forming a hollow oval, and it sounds fine to me too. I am also impressed as hell by Transparent Cable, which uses network boxes on most of its products and I have no idea what its cable topology is. If I could afford anything, I'd probably have a fairly high level of Transparent. Lacking that I have a mishmash of PS AUdio and Kimber on my HT system and all Zu on my 2-channel analog system.