Wool mini-crew with a bit of cushion, year round.

Injinji wool don't have enough cushion for me.

SW toe socks are poorly constructed.

Teko have this weird fit that tends to put a hole in my ankle over high miles.

So it's pretty much SW PhD Running, even though the quality isn't what it used to be, and the elastic in the ankle cuffs wears out over a couple-three years.