Any version pre-War Kakashi is losing.
War Kakashi wins with high diff at most. KamuiGG is the literal statement here. At its absolute fastest, it was faster than Rinnegan Obito could track. And his reflexes were on par with one-arm Kyubi mode Minato which I know sounds insane but Black Zetsu does not distinguish who is more dangerous. And we have this equal reflex feat.
This is NOT an interception feat ( a feat where the character comes out of nowhere to save the day). This is a legit feat where both reacted at the same time to the same danger and not one was faster than the other.
DMS Kakashi obviously negs. Susanoo is overkill, godspeed Kamui Raikiri is overkill, one Kamui Shuriken and it’s GG. One shuriken alone have MASSIVE AoE warp range, it is the size of Perfect Susanoo lmao. It will suck Itachi and his tinyass Susanoo in.