Frankly, way too much emotion is put into the spoke thing. I weigh 230 pounds, build my own wheels, and have always used 2.0 straight gauge DT Swiss spokes. Have never broken a spoke in the wheels I have built. One set has over 50,000 commuter miles on them. Why do I use straight gauge spokes? They cost less. Period.
When I build performance wheels I will use alum nips and DB spokes up front, but never alum nips in the rear and only DB in the rear if I have extra cash to spend.
I will say Wheel Smith spokes have always failed within a few hundred miles, so I no longer use them. Tried twice and they have failed twice. Will say they are really good looking spokes, just not up to snuff for my fatness.