Well it's hard to choose. Kimono Itachi increase mystery cooldown by 2 round and cancel standard for the teams that have more than 50 chakra. he can pretty much shut down a whole lineup. While Edo Itachi needs control to cc enemy's position 1 and I'm not sure he can even with the treasured gourd.
If you are a 700k+ whale with a 200k+ move 2 you can do it 
That said: both the itachi have flaws but imho currently edo itachi is better simply because full taijutsu teams or do not exist or get easy controlled by him.
FLAWS?? edo itachi strong standard best cc mirror doge chase. you expectation is too * high.
Edo itachi personal endurance is close to unexistant.
1 hit from a decently stacked edo hiruzen or edo han standard attack or any strong move 1 nin/tai mysteries (like naruto hokage minato's or kushina habanero) pretty much oneshots him.
He is op just because most of the current op mysteries/chases/standard attacks are full nin.
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