I guess you need to install a parser and analyze each run, Alex. You are kind of stuck in a bad loop since you normally are on sixmen constellations and thus in a limited dps window. I love "problems" like this and figuring out what works best in a given situation.
* Only single target dps on animals matters.
* Animals have very high protection.
HoX (and Demo) are in a bad situation here mostly since it is either magic damage or combat rating (fire) and both are mitigated by protection. And the two classes has few or no alternative damage sources. So debuffs are as important as ever before.e Perhaps consider to use Prince of Terror so that the BtD dot can crit and do unholy rather than fire. Maybe the animals are more resistant to elemental damage than spiritual? Would be one thing to test.
On Wednesday, Patrick was 9th on damage to animals with 942 dps. He used a build with Inferno and Avatar. I think he used Red Shadows. He was in stun/root duty of Symbols so his dps would be higher if he was not. Maybe the two of you should talk and exchange experiences?
Inferno was 4,5% of his total damage on Animals even it being fire damage.