Midchuck ... Norman (as I genuflect) uses GHS light gauge and he buys them in singles.
(Would you believe me if I told you I know that because's he's hiding under my bed?)
Certainly strings aren't the only important aspect of what makes a guitar sound good, but I've learned in the last year that they are VERY, VERY IMPORTANT.
I'm currently testing different makes of strings to see which sound better. My Larrivee came equipped with Elixir medium gauge strings, but the tension was too much for me. I bought sets of (all light gauge) Elixir, Earthwood, Dr. Rare, and Rogue (made by Martin, very cheap, good reputation).
I'm testing the Earthwood first and they sound great! I'm not hard on strings and my hands don't schvitz, so my strings last a long time, so it will be a few more weeks before I try one of the other makes.
I have Martin Folk Guitar Silk & Steel on my B-25 and they sound awful, yucky, horrible, drecky. THEY TWANG with every stroke. They are gawdawful!!!!! Am I saying this with enough emphasis? That's why I haven't played it in a while, but gonna change 'em this week, probably to the Elixir. 'spaw suggested I try Elixir Vintage Bronze on my Gibson and I may just order some and wait to change.
I'm having a sweatshirt embroidered with the words: