Little, Crabtree, or Ogbmanaya(sp?) at flex?

Flex spot has opened up with Bradshaw's injury and having the bump Greene to RB2. It's 0.5 PPR. Little's offense has been struggling but they are chunking it a lot and should again this week with him as the leader in targets, Crabtree plays for the better team and is more likely to score, but Ogby is the starter at RB in CLE which means guaranteed touches and he also catches passes in a offense that McCoy dumps the ball off a lot.