I usually use Black Knight Greataxe (618 damage) or Fire Zweihander (728 damage).
I was thinking about trying to use the Greatsword of Artorias but I would need to put 12 points into Intelligence to be able to use it which it quite a bit.
Would that be worth it? Would it do any decent damage?
I don't do PvP so this is ONLY for PvE.
I also know that Greatsword of Artorias scales nicely with intelligence which I won't use past the 20 points I need to use the sword.