Board Thread:Naruto Discussions/@comment-24347194-20150211225344/@comment-5936871-20150406170126

Minato doesn't just have Flying God, he has Body Flicker too, and he can summon Gamabunta to combat Itachi's susanoo and can use guiding thunder to warp away Itachi's yasaka magatama. Also, Itachi has the advantage of knowing more about Minato because he had time too. Itachi was only a child when Minato was alive and he died long before Itachi ended up becoming a well-known famous prodigy who later single-handedly massacred his entire clan. So Itachi has the advantage in knowing more about Minato than Minato knows about Itachi. Although, Minato has shown that he is intelligent enough to quickly understand the mechanics and working behind his enemy's jutsu very quickly and can get around them, as seen with Obito.