Who should I use my 5* Mutant Awakening Gem on?

I currently have these 5* mutant champions in my collection.
Are any of these worth a Mutant Awakening Gem? Any of these I should rank up as well?

Comments

Archangel a billion percent

AA hands down

Definitely AA-ron

Rank

Now I don’t need to hunt for a mutant gem. 🔥

AA without a doubt

This content has been removed.