This topic usually creates quite the s__t storm. Both really good scopes. I have only heard about the conquests, & have no experience with them. But I know the older Zeiss werent very good at all. But just as everything else, the crappy stuff gets weeded out, and usually improvements are made.
I have always had & always will have Leupold. I have about 10 right now, and shopping for a couple more.
They each have benefits over each other.
-Industry wide, Leupolds warranty cant be beat.
-Both are very, very good glass, with the brightness going to Zeiss by an edge.
-What PB says about the Leupolds eye relief changing with power level is true, but even @ high mag. its still better eye relief than most
Bottom line is that both Scopes are excellent, you cant go wrong with either, but I will never, ever stray from Leupold!
I know the Hunting/Shooting that Nube does, and a little about Prairie boy as well, and if they are using Zeiss, they will be good!!