User blog comment:Neowitch/Place your bets, folks!/@comment-4374114-20120517193557

My vote is that it's Shanks. Though I don't know if Law will tell Luffy, since he may know something is between them from Marineford. I expect if it is Shanks that Law would keep it from him for a while until he is almost ready to execute and then it slips. Luffy and Law would then fight it out, to the amusement of the rest of the crew, lol.