Nobody can solo everyone. Nobody. There are enough hard-hitters that everyone has someone that's a bad match for them.
Also, your strategy is kind of screwed by Kisame. I'd be willing to bet Kisame could take Minato on, being the Tailed Beast without a Tail and using the water technique that created the water dome (can't remember its name) which would neutralize Minato's speed.
tl;dr good try fanboy
water dome < FTG
but yeah kisame would still give minato a run for his money...but don't forget kisame's weakness was an enemy who possesses speed and power...
EX. NARUTO PUNCHED HIM OUT WHEN HE MASTERED THE NINETAILS CHAKRA
EX. GAI OVERPOWERING HIM WITH SPEED AND OF CZ THE POWER FROM GATES...
Im not saying minato has that physical power but taijutsu wise I would guess he's far ahead of Naruto...and by their base rasengan alone...minato is way stronger...
EX. When naruto's rasengan hit tobi, it only burned or exploded...but when minato's rasengan hit tobi, he f+cking bled and run away...