Demonologists or Necromancers

[ShadowTek]

Hi, so far the funnest army to play with for me is Black Knights, Bone Dragons, Archdemons and Demoness

for my 5th slot Im not sure if Demonologists or Necromancers are better, or mabey somthing else? What do you guys think?

With the setup above, and having the sets:
Princess set
Undead set
assassin set
darkness set

They are awsome.. however I use Agvares (after useing the Moro for along time to get the splinter of darkness), and I changed his gloves/belt slot to a helmet slot