my favorite needles for sock knitting are my size 0(2mm) and 1(2.25 and 2.5 mm) knitpicks dpn's.
as for my favorite sock yarn......hard decision to make. I really LOVE LOVE LOVE blue moon fiber arts socks that rock yarns
, koigu, lorna's laces, Louet gems, Hand Maiden, Fleece Artist, Interlacements tiny toes, Zen String, Yarn Pirate
, and Lime & Violet's yarns
....all SOOOO BEAUTIFUL!!!