Just sayin though, pure builds are terrible once you get up to around 120. I recommend putting either some INT if you want to use homing crystal mass or some faith for DMB/SB. They're all really good, depends on your playstyle though.
Queelag's Fury sword will scale off of Dex and Humanity, which is rare for a flame/chaos weapon which isn't common for those weapons since they usually lack stat scaling.
Other weapons with good dex stat scaling that might be fun, spears, rapiers, daggers and even the whip. Some weapons also have special quirks, like shotel you can find in Sen's Fortress can hit around shields(it's the sword Lautrec uses).
If you have more than 14 Faith and a bit of Strength, the Straight Sword of Astora scales off of all three stats, is divine and does magic damage, but it otherwise like a long sword with a nice thrust attack.
It all depends on play-style. I really like the scimitar because it's faster than most enemy attacks and can be used to interrupt unarmored minions when they try to attack, which does improved counter-attack damage.
~ PSN ID: ValorPhoenix ~ Raven [ / . \ ] Hubris ~ Bone Ravens "There are more defective users than defective systems."
I have the most playtime (and fun) on my high vitality dex build, packing a Chaos Blade. No buffs, no pyromancy. Before anyone says this katana sucks, it has:
-Noticeably higher damage than other katanas -Stacks more bleed per hit than other katanas -Is longer than uchi and iaito -Drains less HP than the Hiltless did in Demon's Souls at 50ish vitality
So far, I haven't had a fight in which I had to switch to a backup because my health was too low. Might be because katanas don't encourage as much of an uber aggressive and spammy playstyle in this game.
chaos blade is very effective especially one handed R2 gives almost a full 360 radius of damage for anyone trying to backstab it has a small charge so becareful. Idk why but it gives a heavy weapon feel to it because blows away shields quicker than the other katanas and R2 2handed smashes people to the ground like a great axe.