People underestimate aomine too much, sure akashi has emperor eye, but his speed can only be defined as 'good'... whereas aomine's speed can be defined as 'prodigious', get what i am saying?
As i recall, a not-completely-serious aomine was described to be 'too fast to react to' by kagami and Hyuuga. Even Kise who's reflexes and agility are on par or greater than kagami's was completely blitzed without even a fake, aomine just ran and kise could barely react, again he wasn't fully serious, he was laughing smiling and still warming up, a completely serious aomine(non zone) would then be almost invisibly fast to normal or even above average and good players, even to the rest of the generation of miracles, his movements would be a complete blur. No matter how good emperor eye is , against someone who is blurringly fast, there is no way it would as efficient or accurate as it is with normal plays, tthat's big dent in akashi's weapon.
There are 2 more things i would like to point out:
Something midorima had said about aomine: "aomine is too unpredictable, his moves are too unconventional, completely out of the textbook. In basketball, all players follow styles that re based off of basic unspoken conventional rules, these rules restrict greatly the number moves you can do with a ball, but aomine breaks all those rules, he breaks all the conventional limits placed on a person's basketball. He is unstoppable He is limitless."
With this we can infer, that even if akashi usess emperor eye, he still has to deal with dribbles, ball movements, fakes, dives, formless shots, passes and body movements that he has never seen before, it would affect his reaction time.
Not to mention aomine's acceleration is inhuman, he can go from 0 - 100 in a split second, so if he accelerates and akashi uses emperor's eye, by the time he stretches his hand to reach the ball aomine would be almost completely past him, even if he knew when and where the ball would be, his agility isn't good enough to allow to reach it before it before it moves forward.
Simply put you need to be atleast close to as fast as the ball is, if you want to try to intercept it at a certain time and place even if you possess that information (which is what emperor eye does)
Akashi mostly fails to fulfill this condition...
It entire depends if akashi can use emperor eye just before aomine drives, he would have to predict that, he would have to use emperor eye to use emperor eye yet again at the perfect ttiming...which is nowhere near easy
Overall it is a tie...
However if we use akashi at the end of the game against Jabberwock, then it is without a doubt akashi [because...spoilers] |