if you are going to biwire them, the gibraltar will work better, as it was designed to be a single biwire cable. mont blanc, run full range may "better" gibraltar, but not if you use it as a single biwire.
if you are buying from a reputable aq dealer, they should be able to steer you in the right direction.
if you are buying from a reputable aq dealer, they should be able to steer you in the right direction.