Wich 4* Tech to R5 for def?

NEO_mr_Anderson

This is strictly for def. Lower tier (13)
Why I hesitate on my choice?
GG is a great def and I can use him, right now, on intel
Darkhawk is a fairly new champ. Ppl might not know how to fight him, and double immune. None in our ally, good for diversity.
Yondu, obvious reasons, he's always a tough one to beat
Ultron, classic fighter with some regen and double immune
IMiw, one of the best def, but, we have some in our ally, so, diversity wise, not good.

Fhfjghhggggjfhfjg

IMiw awaken

Imiw is the best option