Need a Week 15 flex

[irishpride]

So I'm in the 2nd Round of the playoffs and I need some advice on who to start at my flex position. My 2 best options are either LaGarrette Blount or Derrick Mason, who should I go with?

 

[NYCHitman1]

My vote goes for Blount vs Detroit.

 

[Dan0myte]

I've got Blount in my starting lineup this week. He's higher rated than LeSean McCoy or Ray Rice, my other two options.