Once you pass a price-quality threshold, there's no such thing as a bad binocular.
If you are unable to compare them, be sure to use each binocular, preferably near dusk, for at least 30 minutes of looking at several different objects. If there is a problem with alignment or parallax, or anything pertaining to assembly, it should show itself to you as a headache.
If it makes a difference, I would invest as much money as I could in the best quality available because 95 percent of the time you're hunting, you're looking through binoculars -- in the West, anyway. You're making a once per lifetime purchase -- or you should be.
I use Zeiss 8 x 30 B/GA IF Olive binocular with F2 rangefinder reticle. They weigh 25 ounces, including strap, ocular and objective lens protectors, and snow filters.
Size and weight become important as you go higher, as you get older.