i don't overrate kakashi
normal kakashi has the strongest and fastest attack and so strong defense as he can go to the other dimension but he need more chakra so when he has chakra as current kuama chakra which he has ,he will use the kamui as he want and can beat anyone
No. You failed to realize that Obito can teleport to the other dimension as well to kill Kakashi. He can see what the Jinchuurikis see with the rinnegan in each of their eyes so as Kakashi is planning to Kamui one of them, he would have to look at them and Obito already showed he can tell when Kakashi is going to use it but doesn't know what he'll use it on. Plus the fact that Kakashi would be up against 6 Bijuus so as he looks at 1 Bijuu to use Kamui, the others would be shooting tbbs at him and he could only use Kamui on 1 thing at a time so he would be dead. Obito would be waiting for him in the other dimension for him. Kakashi would be out of chakra before the 6 bijuus. Plus Obito has everything required to make the 10 tails, it's tbb s so OP who knows if he can Kamui it and Obito would stop and direct attacks to it.
Naruto, Minato, A are to fast to be hit by tht since MS couldn't even keep up with A speed and th other 2 are faster. many others would win as well and that's including Bee who is really fast as shown with Sasuke and has Shahame (sp?) to absorb all of that chakra.