Different Cold DW Infliltrator Devotion setup examples, need more input

[Ungoliath]

I spend alot of time on the devotion minigame. But somtimes i am stuck and dont see more possibilities or i am not aware of something.
Now I tried to set up different devotion setups for Cold DW Infiltrator and ended up with 3 types of routes which i would like you to comment on.
Also i would like you to tell me your personal favorite devotion setup if you play or would play an Cold DW Infiltrator. (Deathmarked Set in my case)
(skill setup subject to change)
In general i used Viper + Rhowan´s Crown + Murmur as backbone of my setup.

1. Emphasis on Crit (Amatok (Deadly Aim), couple of green +OA%) and ADctH (19%), skipping Yugol Final (dmg reduction doesnt stack with Aura of Censor)
   https://www.grimtools.com/calc/wV1LLeB2

2. More Passive approach (Leviathan + Blind Sage 4 points only)
   https://www.grimtools.com/calc/62aMMmb2

3. Defensive Leviathan approach (Crab)
   https://www.grimtools.com/calc/0V0LLeEV

Some questions:

1. Viper or Ultos?
2. Reventant or Rhowan´s Crown?
3. ADctH more or less important than passive defenses?

[ya1]

Viper or Ultos?

Ultos. Unless you need to put that 5th point elsewhere.

Reventant or Rhowan´s Crown?

If you can afford -6% adcth, the Crown.

ADctH more or less important than passive defenses?

Depends on the proportions but I guess adcth.