In the end of chapter 366, they meet again, Sasuke and Itachi. Sasuke has been very smart with his moves. He's fast, really fast. He's strong and has used his sharingan to its limits (almost, like he doesn't have the mangekyou sharingan to use genjutsu or the tsukyomu). He aslo has the cursed seal and defeated the deidara (kinda). Sasuke is more powerful and focused now than before. Though Itachi is strong, he probably didn't have as much battles to go through as Sasuke after he joined Akatsuki. Just those who get in his way and the Jinchuuriki. Tobi DID say that Sasuke may be stronger than Itachi... Though its your choice, the fight has begun and what do you think will happen?