Wildfire is currently the best ranged WS isn't it? Is it better in the hands of a cor or rng? Im kinda considering cor cus bard is my first love but idk.
It's the strongest magical WS, but whether it's stronger than physical WS or not is depending on the NM....on mobs like Bismarck or B.rex, you will see WF do higher WS than physical WS, on mobs like Qilin or Fjalar, you will see physical WS beats WF. Ideally you'd want both WF access and one strong Physical WS for RNG,such as JR or last stand. And maybe one low enmity WS(relic) when enmity is an issue.
RNG actually has access to better WF gears, such as Tjukurrpa Mantle, AF3+2 feet, Seiryu's Kote. RNG also has higher innate AGI. In an deal WF build for both jobs, RNG should pop higher number. COR has fireshot dmg boost+20%, but in event like VW when 1000 ppl spamming WS and magic, sometimes COR won't get the benefit of fireshot dmg boost. When both COR and RNG spamming WF on same NM, COR won't necessary do higher WS dmg than a RNG.
Personally I think RNG has higher gear requirement though, since you need multiple relic/empy to handle different situation, and quite possibly KC even. While COR just need 1 empy and get the job done.