McKinnon is a 25 year old RB who had his shot last year and this year he won't see much of the field this year because they brought two other RBs (which should tell you how his team views him). Barring injury, this year is a write off and will likely be available on the WW all year. You're talking about a 3rd string (maybe 4th behind Asiata) running back. Maybe either Murray or Cook busts and then he's a back up. You're hoping for him to be the #2 at best but even if he is, it's going to be a committee. The Vikings have made that very clear. Why waste a roster spot on a RB who will be on your bench for a full year and 26 years old before he
potentially sees a significant workload on another team next year. And even then who knows.
I thought M. Jones was Marvin. If it's Matt then I agree that there's no reason to go after him.
Hill I have no idea why you like him. He's a JAG with a legitimate stud and a high end back up in front of him. I don't see how at any point this year he would be a starter on a fantasy team. He's maybe going to get some short yardage work but will mostly be a special teams guy.
Agholor is still young for a WR at 24. Being WR4 or 5 on a team likely sees more field time than a RB3 or 4. Plus, receivers are more likely to develop later in their career than RBs.
Miller has the most potential since he is making the position switch (you knock him for this but McKinnon also made a position switch into the NFL). Miller is working with Wes Welker to be a slot receiver. If Miller can win this slot role, regardless of what anyone thinks about this passing offense, he by far more likely to get more snaps, touches, FF points than anyone else here. Expect Marvin Jones