>>280819413
>''strongest beast''
Kaido was the strongest beast, no Zoan or animal could take him, until Luffy.
>''strongest man''
Whitebeard was the strongest man until he got old and sick some years ago. Whitebeard 10 years before the story would likely beat any man alive, and no Imu doesn't count.
Hence Mihawk being the worlds strongest swordsman is likely correct too.