Sigh i really don't know what these threads are made for..
It's simple..going by manga knowledge, aka without knowledge of Itachi's abilities... Minato loses,
With knowledge Minato winss...
Without knowing of tsukyomi, and looking at itachi's eyes, Minato will get 1 shotted by it...
Some of you will come with the argument that "Minato won't look at itachi's eyes, he's a genius"
-_- Sigh,
you also fail to realize if he doesn't look at itachi's eyes, he's open to a amaterasu, and he wont be able to dodge what he can't see coming..
With knowledge of both these thigns however, Minato can play his battleplan like kakashi and naruto, Using shadow clones, having 1 look at itachi , shit like that... his chances of winning would have greatly increased