I would rather have Cutch and a streamer than either offer. If you really need pitching you can do better, and ditto for power.
Over the past 30 days:
Dunn: 13 hr, 36 rbi
Cutch: 10 hr, 39 rbi
It's not much of a difference, and over the past 14 days: Cutch 1, Dunn 0.
As for the reasoning with Walker taking RBI chances: I just have to submit that with that logic, if Walker hits he himself would be on base for Cutch to drive in. So it would work out.
12 Team Roto - 15 Restriction-Free Keepers
10x10: R, 1B, 2B, 3B, HR, RBI, SB, BB, K, AVG; W, L, CG, SHO, SV, ER, K, HLD, ERA, WHIP
C- AJ Pierzynski (K)
1B Anthony Rizzo (K)
2B Brandon Phillips (K)
3B Miguel Cabrera (K)
SS Starlin Castro (K)
OF Ryan Braun (K), Jay Bruce (K), Justin Upton (K), Hunter Pence (K)
Ut Paul Goldschmidt (K), Brett Lawrie (K)
BN Norichika Aoki, Cameron Maybin, Tyler Colvin
SP Adam Wainwright (K), Cole Hamels (K), AJ Burnett (K), Kris Medlen (K), Brett Anderson, Alex Cobb, Felix Doubront
RP Rafael Soriano, Jose Valverde, Wilton Lopez, Carlos Marmol
"Farm" (Become FA at end of season in which 50 IP/150 ABs are reached):
Carlos Martinez, Casey Kelly, Lucas Giolito, Adam Morgan, Courtney Hawkins, Travis d'Arnaud, Archie Bradley, Nick Castellanos, AJ Cole, Mason Williams, Zach Lee.