tl;dr: The ODROID-C2 is a very solid competitor to the Raspberry Pi model 3 B, and is anywhere from 2-10x faster than the Pi 3, depending on the operation. The software and community support is nowhere near what you get with the Raspberry Pi, but it's the best I've seen of all the Raspberry Pi clones I've tried.
tl;dr: The Orange Pi Plus offers much better specs, and much better performance, than a similarly-priced Raspberry Pi. Unfortunately—and this is the case with most RPi competitors at this time—setup, hardware support, and the smaller repository of documentation and community knowledge narrow this board's appeal to enthusiasts willing to debug annoying setup and configuration issues on their own.
A few months ago, I bought an Orange Pi Plus from AliExpress. It's a single-board Linux computer very similar to the Raspberry Pi, with a few key differences:
To use the built-in 8GB of eMMC storage on the Orange Pi Plus as a writable volume in Linux, you need to delete the existing partitions (I think mine were formatted as FAT/WIN32), create a new partition, format the partition, then mount it:
sudo fdisk /dev/mmcblk1p to list all partitions, then d and a number to delete all existing partitions, then w to write the changes.sudo fdisk /dev/mmcblk1n to create a new partition, then use all the defaults, then w to write the changes.sudo mkfs.ext4 -L "emmc" /dev/mmcblk1p1sudo mkdir /emmcmount /dev/mmcblk1p1 /emmc