I own a set of the 14x4.7 APC SF props and they work great when flying our GH2 on our Cinestar 8 with Hoverfly Pro. We recently shot for a client with a 5D MkIII and used a set of Xoar wooden props 14x5. They fly well with the heavier cameras. The APCs fly great no matter what the weight. The Xoars aren't as good with the lighter cameras but seem to fly well with the heavier ones and they descend pretty good too. I'd start with the APC SF props since they work well and are affordable. Then experiment with others as the budget allows. Always keep a couple of spares handy on a shoot.
These are just my opinions, not scientific fact, but we've got happy clients, so we must be doing something right.