After looking through my dad's swaro I would have to say it's the best for low-light shooting. I use a Leupold VXII 4x12x44 and it suits me fine, I dropped a buck last year in really low-light. The swaro is a fine scope though, I am just satisfied with what I have.

BTW-I have a redfield 4x12 on one of my father's old rifles, a 36yr old Browning safari 308. It will still shoot a respectable group too..