So now I have alternatively tested out Redshift and Vray.
They are absolutely PIA garbage compared to Octane.
Whatever features they have that Octane doesn't have, I hope Octane gets them.
But as far as complete rendering applications, they suck compared to Octane!
Win 10 Pro 64, Xeon E5-2687W v2 (8x 3.40GHz), G.Skill 64 GB DDR3-2400, ASRock X79 Extreme 11
Mobo: 1 Titan RTX, 1 Titan Xp
External: 6 Titan X Pascal, 2 GTX Titan X