Soloing in Horde...Scout or Engineer(Power&Healthvs Fab %off Builds)

In horde mode the scout and engineer have the best cards for soloing in horde but who’s really got a easier time of it,the scout with lots of extra power that he or she can get after depositing it in the fab(plus all kinds of health boosting options).Then theres the engineer with just a bunch of fab dicounts,to get base and weapons cheaper,so which ones got a easier time in horde going solo?

I usually use Scout with deposit bonus, health boost, shotgun damage, build cost and either health regeneration boost or fortification health.