I have owned both. I bought the Razor in 2016 and sold it this year and bought the Ares. They are very close in optical quality. The color is warmer and more natural in the Ares; the Razor is cooler in color, giving it a grayish appearance.
The Ares is much more compact and I believe it is weights less than the Razor.
The one thing I liked about my first gen Razor, was the fine focus knob. The Ares has the barrel focus wheel on the body of the scope. It works well and I have no problem refining the picture. However, I like the location of the first gen Razor focus knobs better.
Given the price difference, there is much more value in the Ares than the Razor. I would steer you towards the Ares.