Better RoS STASH? Jackson, Williams, Kelly or Dillon?

(10t STD) 2 teams, 4 backup RBs. Assuming that Jones is out for atleast 2 weeks (groundless speculation, just a hypothetical) -

Which of these backs has the most talent and opportunity upside?

If Aaron is out I would rank them Williams Jackson Kelley and Dillon.

I don’t buy Jackson’s week 6. He’s been here before and it’s never worked out. Williams has as well and has a better track record than Jackson but still not going win you many weeks. Kelly is less valuable than Jackson. Dillon, to me, has most upside as I think they try to establish him as the goal line back. Williams is safest floor. Jackson close to Williams.