At first blush this seems like an easy contest, but I would agonize for days and days to try and narrow my favs from LL down to two!
New colours are always exciting, but I have quite a few favs that I've had since day one of my sock knitting journey.
One of those is Jeans, and I've happily received a topping up supply along with some new colours I ordered recently.
This, like most of my Lorna's knitting, is Shepherd Sock, 80% Merino 20% Nylon, 430 yards/100g.
This is a colourway that stands the test of time. As long as folks wear blue jeans this is a sock yarn that will appeal to many.
This is size Medium + (mens 10 shoe) knit with the 72 cylinder and 36 ribber on the Verdun 47. This version has a 1x1 ribbed topper, then 5x1 leg and instep.