RB Keepers... Need to pick 1 of 4

YO YO… I have a dilema… I have a two keeper 3 WR .5 pt league. I have Michael Thomas as my 1st keeper.

I need to pick one RB out of Sanders, Mixon, Jacobs, and Eckler. They are all tier 3 guys. I love Jacobs… but I am leaning Sanders. THANKS!