TL;DR
What hardware/board do you guys recommend to upgrade from RPi?
I have been running XBMC/Kodi on RPi for pretty long. Used openelec initially and now thankfully got to install LibreElec and happy with it!
Have fiddled with my RPis for years, though the foundation is releasing new boards regularly, now I want to move to a better hardware. It's fun to tinker around this, I want a stable hardware.