I know it’s the adjudicators knife, but I want to hear your opinion
Black knight great axe carried me in dark souls 1 lol. And exile great sword is one of my fav weapons just because of the look
For pure aesthetics, I would go with the Rune Sword. It just looks like a badass ceremonial blade used for evisceration purposes and should be feared in a brutal, melee combat.
My favorite weapons would be (5 here, in no particular order except I saved the best for last)
Sellsword/Warden Twins
Dragonslayer Swordspear (whatever Nameless' weapon is called)
Brigand Twindagger (or something similar)
Dragonslayer Spear
And Lifehunt Scythe
...honorable mentions go to Obsidian Greatsword, Moonlight Greatsword, Iaito, and the twin clubs from DS3.
My bad (edit)