One thing to consider, that's often overlooked. Often "stronger" wheels break spokes sooner than lighter built wheels.

That seems counter-intuitive, but it's because lighter spokes operate at higher percent elongation. This makes the spring range wider.

By analogy imagine a bathroom scale. If you preload it with 10#s, then add and remove 25#s, the scale will work between 0 and 35#s, zeroing out with every cycle. However if you preload it with 50#s and add and remove the same 25, then it swings from 25-75#, always remaining within the spring range. If you've ever driven an empty truck on a bumpy road, you'll know exactly what I mean here. Trucks ride better when loaded, and wheels do to.

So, if you want a more durable wheel, build with 2.0 double butted spokes, using even lighter spokes on the slacker left side. IMO- the biggest difference between production and quality hand built wheels isn't the build quality (though that helps), it's better component selection, which ensures that the wheel works as a system with all the spokes contributing full time..