User blog comment:89AnimeCoupleMaster/One Piece; Luffy vs. New World Villains/@comment-4889755-20140202050807

Arlong wasn't from the Westblue, he was from Fishman Island. He had the highest bounty in the east blue at the time, though (20 mil).

But, after Doffy I'm thinking the most logical prediction is Kaido or Big Mom.