For short rides, easy rides, I doubt the socks make much difference. But l found on longer rides with temps at either extreme, decent socks DO make a difference. Wicking, and some bulk on the sole with a thinner top makes a great cycling sock. I use PI Attacks, SockGuy & DeFeet. All are reasonably priced.

Now if I can just convince my wife that they're not to be used as slipper socks, I'll be all set.