I recently ordered an Orange Pi 3.
Why an OPi3 rather than a Raspberry Pi? Because:
- Onboard storage (eMMC is faster & more reliable than an SD card)
- Faster GBit networking
However it is obviously less mainstream. I bought it from AliExpress with a case (& fan / heatsinks) & a PSU (although it can be powered up with a decent USB cable / supply). You’ll also need a micro SD card to install different OSes.
So far I’m very impressed, it boots very quickly and seems stable. Only used wired networking so far.