I think Pan CW can use Dominion as a weapon best.
You get your 100 gold temples and your dryads and your dominion is almost as good as Ermors in terms of pop killing
.
The only problem is that Pan CW is imho weaker than Ermor and has more problems to get cash.
In Small-Medium-Size games, i.e. not bigger than Inland i think dominionkill strategies are worth it with Ermor and Pan CW.
You will do a bit of combat/raiding also but mainly rely on your dominion.
In Lategame a dominionkill attempt is also promising with the nations able to blood sacrifice imo. Iirc only Vanheim, Mictlan and Abysia may Bloodsacrifice. I think that Vanheim is suited best for a lategame blood sacrifice dominionkill approach.