I get the impression that Jiraiya was better than Orochimaru at sealing.

He commented that Oro's seal over Naruto's belly button was rough. I don't think he would have said that if his style was even weaker. Plus, he didn't hesitate long at all to seal away Itachi's black flame, so I guess he really knows what he's doing.

As for Kakashi, we know that he learned it after Oro, so he can't be too great with it either.


Still, I gotta say that the 4th was probably the best with his special technique.