There are variables that makes it that this fight would end up in Minato's victory.

First is that they are both edos, this means they can't be killed, second is that they both can be sealed but the only one who has been shown to have such habilities out of the two is Minato.

FTG and seals, plus the fact that they are both edos plays in advantage to Minato.
(not counting the unknown techniques of Minato that could also be a major variable or not since we have no data on this information, just like we didn't with Madara's techniques before he made a more regular appearence)