Who should I rank up to 6*r2?

NormScully

I have T5 basic expiring and I need to take a 6* up to rank 2. None of these are ideal choices but who do you think I should rank up?

Edit: none of them can be awakened

Thank you in advance for your help!

avenge_123

Can u Awaken him?

avenge_123

Guardian?can u awaken him.

NormScully

Great question. I edited the post. No none of them can be awakened.

Etjama

I'd say Guardian first, then Killmonger.