How come nobody likes me?

I bought a helm and chest for 50k each and farmed act 3 three times so far.
No problem at all. I think WD is like the cheapest character to farm act 3. And he does it pretty fast too.
All my other gears were self-found. I know I need to upgrade gems and whatnot, but it was just a quick test and I love it.
It'll be great if anyone can let me know if I'm using the wrong skill or anything.
The only reason I regeared my WD is the skill Grave Injustice. It's just so cool!

EDIT: What's the best offense modifier to stack for this build? Attack Speed/Crit %/Crit Dmg? I'm sure a little bit of all would be the best but if I can only have 2, which ones should I try to get?
This post was edited by jinshin85 on Sep 21 2012 10:33am