Rank up advice

So I'm trying to decide who should be my next 4/40 between emma frost (unduped) and omega red (unduped) also we would be getting the generic r4 gem in the next month so red could get some help but only would be sig 26. The reason I'm hesitating is I have a 4/40 nick fury I was planning on using the gem any advice would be appreciated
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He’s poison immune and 95%(I think) reduces bleed effect plus when bleeding he emits death field which does solid damage. He heals so great sustaining ability plus he degenerates on heavy.