I had my Leica 3200, buddy's GPO Rangeguide 10x50, and my Fury AB hunting mule deer a couple of years ago at the same time. This was Leica's 3rd attempt at providing me an actual working sample of the 3200 (they failed miserably). So as not to draw this out, here's my own personal summary.
Leica-Best optically by a very narrow margin over the GPO. RF was terrible, wouldn't range past 200 yds on a cold day, never over 500 yds, and slower to give a readout than the other two. Ergonomically huge.
GPO-Best combo of RF ability (excellent), and optics which were very marginally behind the Leica. RF is fast and accurate out to 2900 yds. No ballistic readout however.
Fury AB-3rd place in the optics category, but that's a bit misleading. They are sharp, contrasty, and overall optically very good. Everything that's supposed to operate smoothly does, very well. It is very well built. The RF is fast, virtually never missed a reading, and provides it to you with a second, followed closely by the ballistic readout. As long as you put the proper bullet, velocity, BC, etc in the Vortex app you will get very accurate data feedback from the bino. There's a tripod mount screw, unlike the Leica which has zero. I'm on my 4th year with it now and it has been a stellar performer. Optically, it gets you well past legal shooting light easily.
Vortex' customer service stands alone and speaks for itself. With electronics you will eventually need it, and in my specific case Leica was a joke. Hope this helps.
