Listen people.
1) Bounties do not corelate with strength 1v1 because many other things effect bounties (territory, influence, crew, secret knowledge, blood lines, ect..)
2) The deal with Mihawk(as was always understood before yesterday) is that he has NOTHING but strength. No other character (except maybe Weevil) is like that. If he decides "I'm going to oppose the WG" he's not bringing a crew with him to attack the WG, he's not gathering nations to help him, he has no secret knowledge of the world use against, ect.. Hell he's not even a D. He has a sword and the coffin he sails in. That's all he is brining. This is why everyone estimated is bounty to be 1,3bill-1.8bill.