She's easily eclipsed her Older sister
Without a shadow of doubt, matching C.V's Elle has the better film career so far compared to Dakota. Even though both are still young and it could change but Elle has had the better performances and films so far imo.
I love even at 20 how Elle mixes commercial films with work in the indies, and more so then not gets the right balance. Not everything works for her but that happens with any acting talent.
But she's got some fantastic to good films so far this early into her career. Super 8, the Neon Demon, Galveston, 20th Century Women, The Beguiled, We Bought A Zoo, The Curious Case of Bejamin Button, Live by Night,Babel, Trumbo, Reservation Road, The Box Trolls, The Vanishing of Sidney Hall, Somewhere, Maleficent and Ginger and Rosa. She's also in I Am Sam with her sister so that counts lol. At age 20 that's not a bad run so far.
Not everything has been a success, stuff like How To Talk to Girl At Parties, 3 Generations, Twixt, Young Ones and Daddy Day Care just didn't work I can understand the first four she was working with talented casts or directors in those films and it just didn't click. But that's not a bad run at all.