Personally, I really like the 8" DJI props. I run them with 4S batteries.
I've briefly tried the 10" props, both DJI and Graupner, but still prefer the 8" DJI. I need to get the gains just right with the 8", and then I'll try the 10's again. I got a bit frustrated trying out the different sized props and different sized batteries, as the changes resulted in either a drifty or nervous hover. I figure that this is because the gains for 3S are different than 4S, and likewise 10" props are different than 8" props.
After a bunch of minor unplanned landings and one or two faster ones, I finally broke 2 8" props last night. In comparision, I snapped 2 10" props in a matter of seconds.
The DJI props, I think, are great for my needs, and they are not nearly as sharp as the Graupners.