I don't have either in binoculars. However for my rifle I bought in January I bought the vortex diamondback 3 x 9 x 40 scope and was thinking of a Nikon when I originally went in bass pro. I compared the two and the vortex hands down was the better deal. The guy at the store had this opinion, "Nikon makes really nice cameras". I actually just got the vortex crossfire II 3 x 9 x 40 scope for my muzzleloader and didn't even give it a second thought because of how satisfied I have been with my other vortex scope. I realize that this post isn't very useful to you, but I feel like vortex has some quality optics and great customer service and I'm sure you'd be satisfied as well. Best advice I could give is to just test out both products. Unfortunately you can't get the low light aspect in a store but you can still tell a lot about the optics by comparing them in store. Good luck with whichever you choose, but I think either would be a great choice.

 

Can't go wrong with Vortex.

 

Nikon. Better glass

 

I have the Nikon Prostaff 7's in 10x42 and absolutley love them! I believe they are the sharpest and clearest bino for their price on the market. Ive compared them to bino's that cost 2-3 times as much and cant see much off a difference in quality. 110% satisfied with mine!

 

Comparing only these 2 models get the NIKONS.

When you move up the scale it gets tighter between the 2 lines. You will be happy either way

 

I love my nikon prostaff 7s just bought another pair. Cant speak for the vortex.