On the one hand, Seattle gave up only 50 rushing yards and no rushing Tds last week to Dallas and just a bit over 100 and 1 TD to Arizona the week before. That doesn't bode well for Benson.
This will likely be a shoot-out, but we haven't really seen much from Rice and he is apparently still injured.
I guess in non-ppr Benson, if PPR use Rice.
Close call though, and I am a believer in Benson producing for the rest of the year. Just a tough matchup.