Epic Choice - Which Upgrade Would You Choose for GR75?

By LagJanson, in X-Wing

What if you put Sabine on it. Then, while enemy ships are buzzing around you, you drop a bomb on them! (Maniacal laughter)...

...(more maniacal laughter)...

...(yet still more maniacal laughter)

I did this with a CR90 for the lulz, but she's still slightly better I find on an accompanying K-Wing.
Sabine on a GR75 would never work well competitively, but in a casual epic game, that is another story. (Maniacal laughter)

Edit: *almost* never

Assuming a Farr (too) Bright build, I'm curious to hear opinions on the relative efficiency of using the 2nd Crew slot for:

Shield Tech vs WED-15 vs Construction Droid vs Chewie

(for added durability)