FWIW...
The best low light capability parameter leaves scopes like the Summit and other thin reticled scopes like it out of the running IMO.
Have an S&B or two and Summit, as wonderful as S&B glass is, does not hold a candle next to a 6x42 S&B with the heavy #4 reticle in very low light. Did lots of comps this spring with that particular 6x42 and am impressed. Whitetail scope!
Have no desire for an illuminated reticle for deer hunting and simply cannot understand how an IL can outperform a non-illuminated heavy reticled scope, unless you have a center section on the NI reticle that is too wide....which could easily be the case on a FFP scope at higher power.
Re low light, and needing to spend that kind of moolah...first choice: S&B fixed 6x42 or better the 8x56 S&B, if you can stand the big objective with #4 reticle, and then either a S&B variable w/56mm objective & A4 reticle or Zeiss Diavari 3-12x56 w/#4 reticle.
