Just because Sasuke has passed his teacher does not mean he can beat J-man. Even Itachi said if he fought him, he would most likely lose. J-man has never fought with the intent on killing Oro. He was like Naruto is with Sasuke. I think now that Sasuke has the EMS, which by the way was thanks to his brother once again. He couldn't even beat his dying brother for god sakes but thats another thing. And just incase you didn't now, the only way Oro could be killed was sealing, because when everyone said Sasuke killed him, he was still inside Sasuke. And his brother had to take care of that for him. Honestly, besides learning new trick with the chidori, Sasuke had done nothing worth of note, and anyone his has killed worth talking about actually killed themselves, even Danzo sealed himself. I hate to tell you but Naruto has killed a few people, and he killd 2 of Kakuzus(spelling) hearts and made it so he couldnt even move for the thrid one, with an incomplete Justu.