Anything better than 10 guage Romex?


I maybe moving my set up to a smaller room, but the upside is I can run shorter runs and increase the number of dedicated lines.

My question is,What(other than 10 guage Romex solid core)are others using when they have this opportunity to upgrade?

Thanks.
lacee
AudioQuest makes a power cable available in bulk, but it would be spendy. Also Romex used to make a parrellel 14ga cable for such reasons, not sure if they still do. that would provide more skin surface than the 10ga.
What I do now is to wire directly to the panel and then terminate at the amp end with Furutech male plugs and plug into the amps.
This eleiminates several receptacles and the amp only sees one break in the line and that is at the amp.

I am wondering if anyone has used other wire besides Romex when they have run dedicated lines.

I used to use Carol stranded waterproof 10 guage wires, but I would like to try something that is shielded instead of the romex, but is also solid core.

Somewhere in a different thread someone mentioned AC wire.

I wouldn't need more than 12 feet of wire per amp,so cost per foot isn't that big an issue.

Oyaide EE/F S 2.6 seems like something I might consider, but no one up here carries it(Canada).

Just wondering what other options there are to Romex.

What I mean by better is really subjective thinking on my part.
I know that my Shunyata power cords make a difference elsewhere in my system,so I am looking for similar improvements in a cable from the panel.
Shunyata cable is not on the agenda.

My goal is to have the least connectors that I can in my system.