What does Mihawk having higher Sword Skill than Shanks means to you..
The totality of everything Mihawk can do with his sword scales above the totality of everything Shanks can do with his sword
and by everything I mean EVERYTHING
I mean from strength, speed, technique, haki, everything that affects how well you fight with a sword.
as an example Mihawk’s sword swings can be faster than Shanks’. If Shanks has equal Sword swing speed to Mihawk then Mihawk’s strength is higher than Shanks’ as in the strength of their bodies when they clash. If this is equal then Mihawk’s haki coating is higher than Shanks’. If that’s also equal then Mihawk’s sword techniques are more powerful and varied than Shanks.
basically I’m saying that if Mihawk and Shanks fought 1v1, Mihawk’s combined capabilities with his sword would trump Shanks’ and Mihawk would win the fight.