My favorite speaker cables to this point are the Anti-Cables 4.2 Flex speaker cables. That said, my system is currently disassembled (building a dedication audio room), and I have acquired or built several new cables.
I have a fun winter project, building DIY cables.......all using extremely high end Japanese cable (Oyaide PCOCC-A, Acoustic Revive Triple-C, Neotech UP-OCC, SAEC Triple-C, and Furutech OCC - Nano OCC - and DUCC-OCC). Getting all of that cable was expensive, and difficult as I had much of it imported from a friend who lives in Japan. But it'll keep me busy all winter; very excited to get them going.