The Runaways: Every Character Ranked Worst To Best
1. Molly Hayes
Molly is the powerhouse of the team, a young mutant with super strength that chronically fatigues her every time she uses it. This is a result of her powers manifesting at such a young age as older depictions of Molly from future timelines don't appear to have this drawback.
Molly is the most innocent on the team owing to her being the youngest. This makes for an excellent dynamic within the team as she isn't shackled by angst like her friends and has keen emotional intelligence that proves invaluable.
As Molly is so young she's effectively still a blank slate, far more open to new concepts and is seen as a very accepting and sweet kid. She helps Xavin come to terms with their identity, helps give Victor insight on what it means to be human and works with Klara to help her overcome her prejudices.
In the Battle of the Atom story an alternate version of Molly from the future appears as a member of the Brotherhood of Evil Mutants, and is even able to hold her own against Colossus.