I really don't think you can compare an orp to a silkie.
The size is so different. But I also don't look at my chickens as pets. They are fun and have personalities but they are not my pets.
I was not making reference to their size. I was making reference to the different temperaments of the two breeds (Silkies and Orps) as broodies/mommas. The Orp was overly protective/mean while our Silkies were much gentler toward humans whether setting a clutch of eggs or brooding chicks. Owners have said they've had no problems brooding LF chicks with bantam chicks but in our experience we found the LF Orp chicks quite aggressive toward the Silkie chicks hatched the same day. The Orp chicks harassed other breeds too like Leghorn and Marans chicks that were minding their own business. Fluke? Genetics? Who knows? I just know we have better luck not having Orps or any heavy dual purpose in our flock of gentles. Eventually the Leghorns and Marans had to be re-homed as adults but still glad for the experience of having raised all these breeds. Everyone picks the breeds that work best for their situation.