I had the Conquest HD 15x56, and I preferred its view over the Swarovski SLC 15x56.
Though I didn't compare them at the same time..
However the rubber cover and focus knob was slipperier.. and I suppose even worse in the rain.
My Swarovski SLC 8x56 has better rubber body and much grippier focus knob.
But, my eyes preferred the optics/coatings on the Conquest HD.