Yes go Str sword + dagger and you will have 16k melee while a full vit defender will have more than 20k melee and a full vit DK will have more than 100k melee.

Sword mastery level 7: 192% boost in Dagger and One-Handed Sword damage, 139% strength of additional damage dealt by Melee Attack

Zhen Master level 6 : When Zhen is equipped 600% ( yes 600 ) increase to weapon and optional damage, 1250% ( yes 1250 ) of vitality increase to melee damage.

Just do the Math