I will be fighting a top retrib paladin with Darkedge of Insanity (and near perfection retrib gear) soon to get cheap wow gold, I think it will be the other match-up that we can not win in 2.0, once the paladin learns to not HOJ into COS, but I do think as COS I have a much better chance against an offensive spec over a defensive one.
To be honest, as strong as COS hemo is, it suffers from the same problem I experienced with hemo builds in the past about wow gold, it is simply not fun to play. You pretty much beat everyone when you walk outside of IF, and you know you are going to win before they even dropped the flag. Seeing a T2.5 dwarf hunter sitting on his trap at the start made me cringe; now I do not even have to try unless he is 41 beast. Hemo is just too consistent, too reliable, and boring.
Unfortunately, because I log on at weird hours and play mostly PUG games, COS allows me to win most PUG vs PUG games about wow gold. If I have a full time paladin behind me I would probably go mutilate myself. Still, you know how it is, your cool downs are rarely up in BGs and you are alone, some scrub mage frost novas you and starts to cast whatever nuke spell of his choice to get cheap wow gold, with COS I just activate it and smack him down. Without COS I basically stand there and die.
And oh how can we forget about Undead Shadow Priests? A complete idiot with blue gear can kill me with ease if my PVP trinket is not up, DOT fear run away and I am dead. Being able to send a clear and loud message, that we, rogues, are the scissors to your paper, is just very satisfying to me to get cheap wow gold.