http://www.ehx.com/products/pog2
http://walrusaudio.com/shop/luminary/
This was a lot of fun. I know many gear nerds out there want to hear a comparison.
I will let you be the judge on which sounds better.
The main differences, in the hardware is the POG 2 has 8 presses, where Luminary has 3.
Luminary has Expression pedal capabilities, while POG 2 does not.
I hope you enjoy.