Minato wins mid difficulty. Mid-high at the very most. Nothing in their arsenal even comes close to threatening Minato here, and none can react to any kind of Hiraishin attack nor can they survive a hit from him, well, Sasuke can survive one hit via Oral Rebirth, but that wastes chakra and doesn't change the fact he can't threaten Minato.
-Offense is dodged.
-Minato closes the distance with superior speed and teleportation.
-Minato kills them both.