how about Kakashi and Gai> some Akatsuki?
No most of Akatsuki. I've already stated the ones who are stronger than them in the OP.
In all honesty, I think it was made obvious that Kakashi was better than most of Akatsuki BEFORE the war even began. Those who saying Kakashi is "overrated" doesn't make his feats any less impressive.
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Demon Realm was paralysed by Kakashi's Raibushin, and because God Realm had just used Banshou Tenin he was unable to use any of his gravity powers for another 5 seconds. Not only this, but God Realm was completely unaware of Kakashi's location (as he was hiding withint the rubble) and both God Realm's and Demon Realm's back were turned to him. This means that neither Realm would have been able to see where Kakashi was coming from, and being that one was completely paralysed and the other was unable to use his jutsu, they would of had no way of evading Kakashi's surprise attack. We saw that even with Kakuzu (a ninja with far more experience than either Nagato or Kakashi), Kakashi was able to easily sneek up on him without the slightest detection from Kakuzu. I don't see God Realm and Demon Realm being able to detect Kakashi in such a situation. because Chouji and Chouza's attack was dodged by God Realm, that Kakashi's attack would be dodged as well is totally insufficient. Firstly, their attack came from above. With simple periphial vision, a person can tell if something as large as to huge ass fists are flying towards them. Reacting to a lightning fast attack that is coming completely from behind is something totally different.
In other words, Kakashi outsmarted Pain and Deva was pretty much done for. Choji and Chouza HINDERED his attack, as Kakashi later noted he had it covered. But plot would not allow Kakashi to defeat two of the strongest bodies.
ALL THIS WAS BEFORE THE WAR
In the war? Read the chapters again and you'll see what the manga is trying to imply.
Kakashi and Gai's feats are superior to most Akatsuki besides Nagato/Tobi/Sasuke/Itachi.
If you didn't read all of that ^ Kakashi and Gai>most of Akatsuki