What has you see better in low light conditions is quality of optics, and lower power.
I've been preaching on other hunting sites about lower power as opposed to the higher power craze that's infecting our sport. It is extremely difficult to hold a pair of 10x, or higher power steady enough to see well with them, without using a tripod.
I personally have two very good pairs of binox in 7x42 power, Meopta and Swarovski SLC's. If someone made a good pair of 6x binox, I'd be using them almost exclusively. The benefit of low power binox is ease of use, huge field of view, and if the glass in them is good, you can see detail much better than high power alone. Looking through either pair of 7x42's in low light is simply awesome, as compared to even the 8x30's I have, which is only one x higher.
My words would be to get to a store that sells different binox and actually look through them in low light conditions.