Jiraiya shook his head and chuckled to himself as he looked through an old book with photos of his team's youth, "Sensei… I'm going to have to say I'm sorry. Because if teaching me was even half as hard as it was to teach Naruto, I was probably the most rotten little bastard in the village."
"There were times when I felt like having Enma hurl you off of the Hokage Monument, but I always thought better of it." Hiruzen admitted jokingly, "Why you're telling me this now instead of back when you were training Minato I don't know."
"There's no comparison between the two at all." Jiraiya said, looking at Hiruzen wryly, "They look like each other… that's it. Naruto doesn't do anything like Minato. He doesn't fight like him, learn like him, eat like him, snore like him, nothing. Minato got everything technical that you tried to teach him in a handful of explanations, with Naruto you have to hammer it into his head, sometimes literally. But when it comes to the physical… there's no contest."
"How so?" The curious Sandaime Hokage asked as he took a sip of his beverage, "I asked him about his training when he came to visit me, but all really did was ramble mostly along the lines of, 'I'm awesome, you can count on that old man, so just give me the hat already.'"
Jiraiya rolled his eyes at Naruto's vague and mostly useless explanation to his village leader about his personal growth, "He's not as fast as Minato of course, but even as young as he is Naruto's far stronger physically than Minato ever was." While when Minato hit someone it still hurt, that was mostly because of the speed he would hurl himself at an opponent with coupled with the strength that he could generate creating great velocity.
Naruto was just strong.