I agree with starting Robinson. I have him and Crabtree for my WR3 options, and I'm starting Robinson over Crabtree. Robinson has more upside. Crabtree keeps getting praised for doing a mediocre job. It seems there are many who want him to do well, so any sign of life gets people back on his bandwagon. I added him off the WW just in case he finally does something. With Miles Austin out, Robinson could come up big.
FWIW, I had Little for awhile, too, but cut him a couple of weeks ago. He's the #1 WR on a team that doesn't do much through the air. Even with all his targets, he doesn't catch enough passes for enough yardage to be worth rostering. I started him as a bye week fill-in and he got me two points. Two. And that was a week where many said that he was going to have a big week. So far, his biggest week has been seven points.