Well considering
1. I don't main fire, and Ares Brynhildr are my only 2 cores.
2. I main water, so fire isn't that necessary for me, wind is. You can argue the roundabout logic sure, but I'm worried about the immediate problems (thunder).
3. Fire weapons are gonna be a while till they actually accumulate to significant amounts. There's disaster sure, but there's also a lot more content for the other elements (wind especially) I'm poking now.
4. Ares... isn't appealing to me I guess? I now await crucification
I might probably pick missing out. Off topic, but I'm still debating whether to go for a dragon eye weapon so I can limit break it with tower rewards later on, or just awakening everything.