Actually, if you compare age wise, Itachi > Minato. No fanboying/flaming please.
Well, i will explain this.........
Itachi Minato
1. At the age of 5 or 7, it is shown Itachi and Sasuke 1. Minato showed no such skill at that age. Moreover, he was
playing hide and seek, and Itachi learned shadow clone shown quite timid and introvert, and afraid of "tomato" xd
jutsu and used it to fool kid sasuke.
2. After graduating at age 7, his teachers told Itachi's dad that 2. No such thing about Minato is known.
itachi was a supreme genius and talented boy.
3. He was seen undergoing harsh training by dodging + deflecting
kunai at small age, something which even oro panicked seeing. 3. Again, no such details of Minato is known.
4. At age of 11, he joined ANBU black ops, i mean, ANBU post 4. At this age, Minato is shown to knock out 2-3 Kumo ninjas
is quite high and equals jonin. At age of 13, he was made CAPTAIN without difficulty, which showed he was also quite skilled and
of ANBU black ops, ANBU captain is greater or equals high jonin. was high chunin level.
5. Age of 13, he massacared entire clan, ofc with the help of Tobi, 5. .................
but it was shown it was Itachi who did the most killing. And he joined
Akatsuki, a group of kage level ninja. then he defeated Oro, who was
a kage level ninja, no difficulty.
6. At young age, 19-25, he was a very capable ninja, able of defeat 6. At this age, he was made Hokage, means he was very
deidara no difficulty, seal oro, nagato(with help), and defeat SM Kabuto. powerful obviously, he defeated tobi, and sealed nine tails,
defeated A, etc.
*Additional:- Itachi was said to posses very high thinking capability of
a Hokage, from a very young age, that means, itachi would have become a
really nice Hogake.