I cut Jackson. He has been crap all year and I don't expect him to all of a sudden start playing at a pro bowl level, especially seeing how disgruntled he was last week (hardly even running routes at 50% speed and dissing Vince Young).
Both Robinson and Julio are dealing with injuries, but my guess would be Julio over Robinson since he is Matt Ryan's #1 target and Robinson will be #3 WR with Austin back.
Miles is back, but how effective will he be? I have a dilemma with this as well, though I am leaning towards Miles in my scenario.
Another thing to consider is that the Panthers defense held Ryan to less than 200 yards passing last time. I expect to see a lot of Turner in that game. Even though Julio has a good chance to go, I think Romo and Miles against the Giants is your best chance.
It is hard to fail, but it is worse never to have tried to succeed.