Are you playing 4D chess here and denying Mihawk vs Sengoku because you think Oda will make Mihawk struggle more than you’d like, or would you like it to happen, but just don’t think Oda will let Mihawk do anything cool?
Name a better faction to raid Impel Down, to free Weevil and Doffy, than Cross Guild made of former inmates backed up by strongest power in the world?