Interconnects/Cables of your choice, and why?

The chord company- music speaker cable . Still haven't heard better so they are safe for now.

Usb , Shunyata sigma usb .. same here, still haven't.....

Xlr,  made all of them myself from elec silver wire and untreated cotton tubes neutrik silver connectors . Have heard better but it's a ridiculous amount of money getting there . 

Power cables vary depending upon equipment. 

So many good cables to choose now. Remember expensive cables does not mean they will match your system? Invest your time in auditioning. No shortcut on cables.You have to try them.

@jayctoy  Big +1, and it’s great that there are more and more reputable direct sellers with generous trial periods ranging from entry level like Pine Tree Audio up to higher-end offerings from Snake River Audio and everything in between that facilitate auditioning almost all levels of cables at home. 

I choose cables based on cost and that they are aesthetically pleasing to my eyes because cables make no objective difference with the sound that comes out of your speakers. Anyone with even a rudimentary understanding of electricity would know that. 

@thesummit, a few years ago during the pandemic, and we all can recall how much fun that was, I was able to take the time to put together a system that gave me the sound signature that I still enjoy to this day. It starts at the wall outlet with an AudioQuest power cable designed by Garth Powell for a AQ Niagara power conditioner that I plug the linear power supplies for my Chord TT2 DAC, Mscaler, and a ROON Nucleus music streamer, into. 
On the streaming side it starts with an unassuming L-Com CAT6 Ethernet cable from my router, and then things venture into the realm of boutique interconnects.

I picked every interconnect and cable because of their synergy with the components that I use and for their sound quality to my ears only. 
 

@roadcykler 

I choose cables based on cost and that they are aesthetically pleasing to my eyes because cables make no objective difference with the sound that comes out of your speakers. Anyone with even a rudimentary understanding of electricity would know that. 

Are you from ASR or a fringe member of audioholics?

Cables definitely play a role beyond aesthetics and cost.  Aspects like shielding, impedance, and build quality can subtly or greatly influence signal integrity, especially in resolving systems. Dismissing them outright misses the nuance; yet doesn't undermine the credibility of this discussion.