So Itachi's MS techniques aren't quality?
Of course they're quality. I just believe Kakashi's is better.
Kakashi stated that his bad eye sight only allows him to warp objects closer to him (as long as not huge targets).
So now we're using a Kakashi that has been fighting for two days straight as the base line for this thread? By that logic, why not use Itachi at the end of the Hebi Sasuke battle? Kakashi's eye-sight was only in that state as of approximately 10 chapters ago, and this is after days of fighting and about a dozen Kamui usages.
Kakashi can warp objects, Itachi can fire Amaterasu at them. Seems like an equivalent, doesn't it?
Kamui boasts the superior feats in outspeeding Obito's own Kamui, which pushed Hiraishin to the limit, as well as intercepting a teleporting Gedo Mazo.
It's not a jumping like Hiraishin; in the end he will just waste his Chakra.
Helps with flanking the enemy by teleporting behind them. He can choose the spot to teleport in the real word, as shown when he warped on top of Obito after exiting the dimension.
How often can a non Uchiha use Kamui without his Chakra restored multiple times?
More than Itachi can, if we're speaking purely feat wise.
He used eight Raikiri variants, two Kage Bunshin (splits chakra in half), a Doton wall, as well as five Kamui prior to being replenished. This is not including the passive stress of having the Sharingan active for around an entire day.
And things like walls and smoke bombs take way too long for a technique that is used instantly. Difference is, that Itachi summons the crows instantly and without hand seals, even summoned as a part of his crow Bunshin from a feint before, while Kakashi needs to form the necessary hand seals and use the Jutsu, or take out smoke bombs which he throws. All that accomplished in the instant Itachi aims at him to fire Amaterasu?
All Kakashi has to do is tap the ground to summon a Doton wall, and he has used Suiton wall against Kakuzu in what seemed to be without handseals, as it was fast enough to intercept a Futon / Katon cannon already on route towards him.
Kakashi has shown the ability to pull out a kunai, nail a falling object prior to it falling, pull out another kunai, tie it with a scroll, and throw it upwards, catch another falling target physically all while undergoing freefall himself and having no more than a second or two to pull all of this off. Pulling out a smoke bomb won't be a problem.