Which 4* champion should I put as my top champion?

Deadpooldabest

I have 4* Quake (unduped), Dormammu (unduped), Ms. Marvel (duped), Iron fist (duped), Moon knight (unduped), and Cap classic (unduped) but I don't know who I should put as my top champion.

Skeleton777

Dormammu

Deadpooldabest

Do I have to dupe him or anything?

Abir67

Moon Knight

Shrimkins

Ms. Marvel

King_L0kiB34r

Dormammu, don't need to dupe him he his pretty awesome without.

Deadpooldabest

Thanks