Ok, if you want to argument this silly question. Then he come an another comparison.
Itachi and Sasuke had a fight where Itachi couldn't blitz Sasuke with normal sharingan. But Raikage blitzed Sasuke Mangekyo sharingan.
So, Ay >> Itachi.
Now, Naruto wasnt using his speed feats. This is the same as when Sasuke and Naruto used their combined jutsu to attack Juubito, Naruto was running at Sasuke's speed.
Or when Naruto couldn't pass the Raikage at first, you can see in that battle that Naruto was raising his speed each time until he used his full speed.
The same with Itachi, Naruto wasn't using his full speed. Raikage also said he is the fastest, so dont deny manga facts.