I'd go with the first 3 , and are you in a 8 team league
This league has 10 members. I went after WRs vs a workhorse RB. Generally everyone is fixated on RBs in FF, however with RB by committee the new fad there are only a handful of RBs that warrant top billing. The parity among 2nd tier RBs does not outweigh the value of WRs in this passing NFL (fantasy).
Here are the results of the first 3 rounds:
Round 1
1. Peyton Manning (Den - QB) Texas Killas
2. LeSean McCoy (Phi - RB) Pretty Boy Bob
3. Jamaal Charles (KC - RB) Keg's Killers
4. Drew Brees (NO - QB) Doc Dee Dogs
5. Adrian Peterson (Min - RB) UR MY BITCHES!
6. Jimmy Graham (NO - TE) Who Dat Nation
7. Matt Forte (Chi - RB) 6X Champs
8. Marshawn Lynch (Sea - RB) Assapopoulos
9. Eddie Lacy (GB - RB) Psychotic Mo...
10. Calvin Johnson (Det - WR) The Empire
Round 2
1. Demaryius Thomas (Den - WR) The Empire
2. Dez Bryant (Dal - WR) Psychotic Mo...
3. Aaron Rodgers (GB - QB) Assapopoulos
4. A.J. Green (Cin - WR) 6X Champs
5. Nick Foles (Phi - QB) Who Dat Nation
6. Montee Ball (Den - RB) UR MY BITCHES!
7. DeMarco Murray (Dal - RB) Doc Dee Dogs
8. Matthew Stafford (Det - QB) Keg's Killers
9. Brandon Marshall (Chi - WR) Pretty Boy Bob
10. Julio Jones (Atl - WR) Texas Killas
Round 3
1. Arian Foster (Hou - RB) Texas Killas
2. Andre Ellington (Ari - RB) Pretty Boy Bob
3. Antonio Brown (Pit - WR) Keg's Killers
4. Zac Stacy (StL - RB) Doc Dee Dogs
5. Andrew Luck (Ind - QB) UR MY BITCHES!
6. Marques Colston (NO - WR) Who Dat Nation
7. Giovani Bernard (Cin - RB) 6X Champs
8. Tom Brady (NE - QB) Assapopoulos
9. Le'Veon Bell (Pit - RB) Psychotic Mo...
10. Reggie Bush (Det - RB) The Empire