When it comes to socks, I really like the socks that go over my calves. I bought a few pairs of Lorpen ski/snowboarding socks that are merino wool. I love them. They never slip down.
Nike dri-fit on warm days. My feet sweat like crazy. This last year tried merino wool liners with the dri fit. Smart wool is like putting my feet in a bag, same with thorlos, fox river. Haven't tried darn tough yet. Haven't had a blister with my set up. My boots are dannner 453 or Vasque breeze if I know it's gonna be dry.