The answer for Hiraishin is simply to stay away from the tags.
Sasuke has had no problem "spamming" his MS against Kabuto.
but what will minato do if he get hit by this?
Yea, raikage did that. But look what happened to his ass.
minato does have some epic poses
Do you realize how many times you make this statement?
Nothing happened? Minato was almost stab his ass along with his raiton shield. But sad to say, bee was using hachibi's tail to save him. And that raiton shield who deflected sasuke's raiton swords like a child play, and yet minato was peacefully standing on his back as if that raiton shield and the raiton itself isn't an issue to minato at all. That's what happened.
i will admit that he doesnt stand much of a shot against. madara and rikudou
He doesn't stand much of a chance against Hashirama, his own son, Itachi, Nagato and there are certainly a few others he lacks the killing power to kill such as Orochimaru, Kisame, Kakazu. He can't fly and doesn't have an elemental advantages against the likes of Deidara or Onoki so those match ups are questionable too.
So Minato's overconfidence that he can cut through one of the best defenses in the manga is proof that he would have killed Raikage? Nice try but no.
So since almost happened,nothing happened? Continue trolling.
But nonetheless, raikage admitted that minato is unsurpassed. That alone is enough that minato can kill him. If not, what's the point of making that opinion if he got the most awesome raiton shield in the series and minato can't literally kill him? It doesn't make any sense at all.
and yet do you expect him to blow those kunai in a matter of seconds? 
Depends on the Orochimaru that fights Minato. I think Minato could definitely beat the niormal Orochimaru.
Being unsurpassed in talent does not mean one person is capable of killing another. Talent does not equal strength. The Raikage could not kill Minato because he could not touch him. Likewise, Minato has shown nothing stronger than Chidori or Amaterasu (the only two things to get through the Raikage's Armor) that could kill the Raikage.But nonetheless, raikage admitted that minato is unsurpassed. That alone is enough that minato can kill him. If not, what's the point of making that opinion if he got the most awesome raiton shield in the series and minato can't literally kill him? It doesn't make any sense at all.
As for sasuke, how the heck could he blow all those kunai to pieces? With his lightning jutsu? his fire jutsu? amaterasu? You're exaggerating. Sasuke doesn't have a jutsu that can blow those kunai in an instant/in matter of seconds. His amaterasu, his strongest jutsu can't even burn the samurai's armor.
No. You're just denying the obvious fact. Yea, nothing happened, but the point remains that minato trashed/outclassed the kumo's strongest tag team. That very tag team who defeated/kicked sasuke's ass with ease. Bee is too much for sasuke, raikage is far too much than sasuke, and yet minato was easily outclassed those two.
That's lovely, Minato was superior. Doesn't change the fact he can't kill A, or a slew of other ninja because he lacks the killing power to do so. Don't change the subject.