DeFeet Wooleators and Aireators fit me best. I have a couple of pairs of their Speede socks, but I prefer a bit more of a cuff than what they have. The cuff on the Wooleators and Aireators is just right. I also have several pairs of the taller wool socks, which I wear for colder temps.

http://www.teamestrogen.com/defeet/p...0-b100018.html

The Woolie Boolies are great too, but they're a bit too thick for my bike shoes.

I generally go with wool socks for temps below 70F and regular socks for 70 and above. I try to color coordinate my socks with my jersey, not necessarily to match the colors but I definitely like to make sure they don't clash.

I can't wear socks with tight elastic around the mid-foot/arch area. I do not understand the point of the extra elastic, and more importantly I find it very uncomfortable. This rules out all SmartWool cycling socks, and all the Teko socks I've looked at.

p.s. I have a pair of Aireators with smiling yellow rubber duckies on the cuffs that I bought more than 10 years ago and I still wear them. Just the other day someone complimented me on them.