.. Killer Bee is as strong as he is currently. Minato as strong as he was when he fought Madara and Nine tails. Tbh i don't think this is a easy win for Minato nor for KB, so i really don't know.
plus tail beast bomb wont work on minato cause minato has space-time ninjutsu, this is a very easy win for minato, but then again everyone is an easy win for minato
Minato wins, Killerbee doesn´t stand a chance, Minato was pointing a kunai at his head, it´s a good thing he didn´t want to kill him, killerbee was pointing a sword at his stomach so he would´ve died while minato got injured and possibly die aswell.
I think it would be a draw.. if minto had to saciface himself inorder to defeat the nine tails den ill doubt minato would be able to defeat the eight tails without sacrifacing himself
close combat would be difficult for Minato, there's no way he can fend off Bee's kenjutsu (especially if Sasuke with Sharingan and kusanagi sword couldn't do it)
also I don't think Minato can get near Bee's chakra cloak/chakra bones or even penetrate it/them
doesn't that chakra burn you or something?
The thing is killerB only needs to land one attack and it's over for Minato - there's no way he can withstand a lariat
killerB just needs to TBB the entire battlefield to destroy all the kunai