What about nylon v. wool? Don't think I've ever tried nylon socks. Polyester yes, bamboo, yes. Nylon, no.
The Gold Toe socks I wear regularly are their "Metropolitan" style ones, and they are all nylon. They're thin but not sheer (like tuxedo or silk socks), and they hold up and don't fade.
Also, I always wear over the calf ones for work. Maybe I'm old fashioned, but I think it's really tacky to cross your legs and show shin. That, and I hate pulling up my socks all day long.