sasuke wins this mid diff at most
--Enton projectiles and Enton magatamas can counter the kamui shuriken
--PS slashes that severed island sized CT would wreck obitos PS, not to mention that sasuke possesses a LOT more Rikudo chakra than obito here meaning his PS is obviously much stronger and more amplified
--his S/T Justu and his shunshin are more than enough to evade all the kamui warps as sasuke can easily counterattack obito the moment he solidifies to attack, and can also blitz obito once he is under the range for his S/T