If you're going the PVP route, I would go with 1144 or 2134 (if you're worried about AC).
From experience, you don't really need crazy amounts of AC to hit players. You don't even need much against HV players because it's just going to be a lot of miss between the two of you.
As for the DX stat. You shouldn't even have to worry about that kind of stat. You're not going to go around smacking people in between skills. It's not like you're going to be using Elemental Attribute in duels.
Like you said, AP is pretty easy to obtain so there's no need to worry about that. Even a refined weapon will give you a huge chunk of AP and that's more than enough. Once you get the HP/HV to back it up, there's no problem.
I view it as HP for PVP and HV for PVM. No point in having crazy amounts of HP if you can survive against the strongest monsters with a lower amount. If you can do that, you might as well have higher AP/HV to deal damage with other skills.