Update:

I have been trying all 3 binos out at different times. The vortec do not seem to be as high of quality as the nikons. Oddly my business partner likes them better, but they wear glasses and I don't. I notice a somewhat manipulated effect in the vortecs almost like a camera filter. They do seem to work fine, as in I could use them if that was all I knew, but compared to the Nikons they don't express the world as clearly through them or have as good of depth of field.

I find myself trying to pick between the Nikons now and don't have answer. The 8x42s are easier to pick up and scan and hold steady and have pretty good detail, but the 10x42s bring everything in proper close when I try to look for something specific. The 10x42s allowed me to pick up better detail before sunrise when it's still pretty dark, but they are harder to hold still and I notice a little more eyestrain.