First off, Riton is a local company where I'm from and veteran owned.
In the picture I have my X3 3-15x44 on a Ruger 350 Legend next to a Ruger 6.5cm with a Vortex Viper 6-24x. After shooting both and hunting with both I can say the Riton blows the Vortex out of the water. The glass is clearer and the zero stop is all around better. Even when looking at both in the box as they came Riton is the clear winner, just higher quality. Plus, Riton has a no questions asked warranty as well, can't get any better.