B. Cordelia which path to take

I pulled a +Res/-Def from the banner and ive been kinda torn on which build i should take. Do i go for a Firesweep build ( I already have an extra Faye laying around) or do i go with the Brave build. If i had pulled a +Atk or +Spd i feel the choice would be kinda obvious but since its kind of a middling IV spread im not sure which one would be more useful ( all of this assuming im prolly gonna put L & D on either build). Suggestions?