Another 4* generic ag help/question

Hello. I got that recent 4* ag deal. So I have a gem and 40sig. Also just awakened Archangel in arena. So I can put sig in him, or into another champ, which I can awaken. They are listed down below. Which I should awaken, who will help me in achieving uncollected and overall in other quests?
Thank you!
Thank you!
Another 4* generic ag help/question 12 votes
0
Comments
I have 40, is it enough to make her useful for now until I get more sigs?