Sasuke wins mid diff. KA isn't even happening in this fight due to the restrictions.
2 Magatamas or Arrows Takes Mei and Danzo (1st Izanagi) out at the beginning. Then its Danzo and A vs Sasuke, Sasuke's unavoidable multi-spammable moves make it very very easy to take out Danzo, once he dies after Sasuke has exhausted Izanagi it is just him and A, if A gets close to him for a melee attack, Susanoo's arm grabs him and smashes him or he can spread Enton around the battlefield limiting A's mobility so he can move him for the kill and A has no way to even injure him anyways.