Well, in a fight between Minato and Itachi, I don't think Itachi would have to resort to using the Izanami technique.
If push comes to shove however, I really don't know what Minato would have to accept.
J-man was the one who told his students that they were "The child of prophecy" 2 died, and Naruto was left... It even says it in the scan you provided "One of the Legendary Sannin Jiraya...Called him the Child Of Prophecy..."
I don't believe Minato ever compared himself to Naruto, the other way around actually! It would be fun to see what Minato's Izanami exit is. I know Kabuto's was that he should find out who he really was. The Uchiha's in the flashback was that Izanagi was not the answer for everything.
Maybe put him in a situation where he has to save his family over the village? Now that's a tricky one!