My vote is Leupold over Zeiss. I had a Zeiss V6 and sold it to replace it with a VX6 HD. The Zeiss, at least mine, pulled in a lot of mirage on a sunny day compared to my Leupolds. Also, I don't like the fact the Zeiss didn't have a parallex indicator on the side of the yardage as my Leupolds have. Clarity wise, IMO, the Leupold HD was better than the Zeiss. Some people might disagree on that, but overall I didn't care for the Zeiss. The Leupold also has an illuminated reticle and the Zeiss didn't either. The only pro over the Zeiss compared to the Leupold was the turret system. Other than that, my vote is Leupold. And one more thing... Leupold customer service is way better than Zeiss. In some cases Zeiss will ship stuff back to Germany and you won't see your product for a long time. Leupold gets your stuff back quick.