Depends on what is most important to you. Budget, weight, FOV, power? I have lots of time with SLC's (not in this list the but the standard in which all other hunting bino's are compared against), MeoStar 10x42 HD's, and the most time with my old 10x50 Viper HDs. My main hunting partner has the MeoStar 10x42's, and we always swap at first/last light (good light doesn’t reveal a weakness in most 10x bino's other than FOV). We can glass deer and elk within seconds of each other, swapping both binos back and forth, well before and well past legal shooting light. All this is with the old gen Viper HD. With the new 2018 model (I got the 10x50's again, I love a 50mm obj), I am VERY impressed. Glass is subjective, but they hit a homerun for that price point. It is an absolute upgrade. The FOV and edges are amazing. You can get the new Viper HD for $500 all day long, and it will give up nothing to the MeoPro in terms of glass and you'll come out ahead with more FOV and less weight. I can't speak to the Maven but have heard mostly good things. Bottom line is any of the 3 are excellent and you will not miss spotting an animal because of any of the three. If I had $500 to spend on bino's, I would take the Viper HD 100 times out of 100. If I had 950 to spend on bino's, I would still take the Viper HD's, and spend $500 on tags for 2019 season. Go spot up an out of state bull with your new Viper HD's.
MeoStar B1 10x42 HD
FOV: 6.3 Degrees
Weight: 31.8 Ounces
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Vortex Viper HD (2018) 10x42
FOV: 6.5 Degrees
Weight: 24.9 Ounces
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Maven C1 10x42
FOV: 6.5 Degrees
Weight: 24.5 Ounces
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