I have both weapons but I don't know which one I should be using. Keep in mind that I cant reach the CTC cap just yet, since my Warrior is just a alt that I use to clear 6/8 DS. Spine and Madness are not on our list because we dont have time.
Reaching/pushing towards unhitability is great, but I'd say the Souldrinker proc is better than the 1.2%-ish block/crit block the Hand of Morchok provides you with.