Yes because Chivalry and Strength work together to increase damage. Since the PP WW has more than 700 Str, it will do more damage than any other pet while using Chivalry.Thank you.
I read so much, I am wondering if that is all still valid.
May I ask you a few things in the near future, as you are still here?
One is already burning under my nails: Still Chiv and AI for WWs?
AI also does the most single target damage of any ability.
There was a Drone on Test center for a while. You could attack it with a pet and everyone could see the damage numbers. All our 700 str pets did the same max damage. Khaelor put his WW on it and it did more damage than the 700 Str pets. So for that small period of time you could see a pets damage numbers very clear.
Since PP Nightmares have enough building points to Get AI/Chiv and have a good build, it is recommended to put AI/Chiv on those also.
It would be nice to have more options but the most single target damage pet is one that has AI/Chiv.
You can make Cus and Lesser Hiryus with other magics to play with those. For Magery a current 2 slot Nightmare works fine.