Sounds like an AC thread, but there's some value to a discussion here.
When comparing different positions, I try to simplify by keeping in a similar age bracket, or at least dynasty perspective.
Drew has done very well when on the field and looks like the heir to Fred, he gains value in PPR leagues.
Depending on your starting requirements, I could see Drew as a similar value to Colston, Jennings, or Williamson. Higher if you start the same # of RBs as WRs, less if you use a 2:1 ratio (i.e. 4 WR, 2 RB)