Need help with 1 keeper! {poll}

[Nuk]

Already keeping ARob and Gronk. Now my 3rd keeper is up in the air between B Marsh, Jamaal Charles, & Moncrief, Russell Wilson.. this league is standard scoring but it rewards big plays such as 40 yd and 50 yd TDs for every position. Also for QBs, it's one point per 25 passing yards, running backs is 1 point for every 25 yards, and WR is 1 point for every 20 so I feel as if RBs aren't as valuable and more TD dependent (J Hill was RB10 and K Williams was RB18...). Also, Won this league B2B years and leaning towards keeping B Marsh for the 3 peat cause I feel like I'll be able to pickup moncrief during the draft because everyone drafts like its traditional redraft. Also have the option of not keeping a 3rd guy and possibly have a shot at getting zeke but that's risky. What would you guys do? Thanks. (Also posted this in redraft forum)