I think Stephen Moore should be captain. Vice captain should be a inside back. Phipps, Foley or To'omua.
I'm not a fan of 7s as captain and I'm still not convinced of either Hooper's or Pocock's credentials as captain. Especially Pocock's.
Having said that McCaw goes pretty well in the role.
McCaw is McCaw - he'd be the captain if he played 15! He just fits the role.
I agree about Moore, and I'm not sold either on Pocock or Hooper as captain - not that either are terrible, mind you. Hooper filled the role in Moore's absence reasonably, but Moore was chosen for a reason (albeit not by Cheika), and if fit, should be first picked at 2 and for mine, captain.
Pocock is a great player, as is Hooper, but that does not automatically mean a good captain.
My only issue with an inside back as VC is having someone who is a lock in their position. I'm not sure we do, although To'omua looks likely to be somewhere there. I wouldn't automatically make him VC / C however. Does he have captaincy experience?
Fardy is an interesting prospect, as Brumby Runner suggested, the only other forward that springs to mind at the moment. Slipper maybe, but props are always going to be 50-60 min players these days, so not at the top of my list (although I suppose you can apply that to hookers too).