If you're just using it as a simple SBC, OrangePi may be a good option... but the hardware support with drivers and whatnot is, to my knowledge, far superior on Raspberry Pi's thanks largely to the Broadcom chipset (vs the Rockchip stuff). For many applications where it's used to do hardwarey things, it may not be a substitute.
If you're just using it to run Home Assistant, or some server application, then sure the OrangePi is probably better.
If you're just using it to run Home Assistant, or some server application, then sure the OrangePi is probably better.