Hybrid Zon for me, at level 18 she becomes a god subject only to mana, look what she does to Duriel.
For dangerous situations you pull out a bow and strafe, for aoe, just do a few multis, max charged and LF, respec to whatever you want once you get through NM, I often wait until I get either Witchwild and the upgrade runes, or Titan's to choose.