Ulzuin’s Torch is awesome, but I can’t remember too many god-tier fire builds except Justicar FW (and that’s because of Justicar set and Soldier mastery and FW itself). I would say that in general Cold and Aether builds are stronger, Lightning builds are way stronger, I think Pierce builds (although not many of those) are stronger. Even Vitality builds are more conistent because of adtch associated with that damage types. I think Fire is a bit better than Chaos, Acid and Bleeding, but that’s it. Maybe in old times Fire was the king that’s why they toned it down or something, but nowadays Fire is closer to the bottom in terms of power.
I am judging from my experience and from all the builds that are posted here.