Who to awaken with my generic gem? Nick or CapIW

GamecodeOne

I can’t make a decision. I have a fully maxed and awake 4* CapIW.... so I am not sure if the jump to the 5* which I can only bring to sig 80 is it worth.
Nick on the other hand I only have as 5 star. And could bring him to sig 80 as well.

Help my brain.

The_One

Can you survive multiple fights at less than 30% health or do you take a few hits or a bit of block damage during a fight?

If it's the former go NF, if the latter go cap IW