Odd, the one time I find my merino socks more comfortable than cotton is during the summer when the superior moisture absorbency of wool keeps the perspiration off my feet. And regardless of material, always over the calf. dan
the poll is fairly close. i know that many people just don't like the feeling of wool against their skin. wool feels dressier to me but i find them to be equally comfortable. as far as length, i really don't have a preference.