This is ridiculous... MS Sasuke was about to kill kakashi even though he had just fought Danzo and the only reason he didn't win was because he had used his MS too much. So EMS Sasuke would destroy Kakashi with low difficulty.
Sasuke tried to kill him hard wheareas Kakashi tried to talk to him to change his hate.If he read ,you'll see that Sauke start to fight when Kakashi stoped his hand when he was going to hit Sakura.Notice that In Kakashi's entrance he didn't do a surprise attack,he could kill Sasuke if he wanted.Even without sharingan he dominated him,then again even after using kamui Sasuke got hit again by Kakashi.
I don't call this a fight,the one try hard to kill with a double susanoo arrow whereas the other try to give him a last chance to stop his vengeance.
Even if in a real fight against EMS Sasuke and Kakashi ,Sasuke would win but Kakashi is underated .