Who would be more useful as a rank 5 awakened?

So i managed to get to act 6 on my second account and i managed to get a tech awakening gem, 100 sig stones and a rank 4 to 5 tech gem so who should i rank up out of ine of them based on how useful there in 6.1?
Who would be more useful as a rank 5 awakened? 29 votes
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And others plus starky takes a little less skill to play
If you take up either starky or Ironman use the gem and stone on the one you rank