1-A serious amount of fucks are given both via attention to detail, polish, and no corners are cut. I have been lazy comparatively and often accepted "good enough." I'm working on changing this so that my priority is what is awesome for the user, not easiest for me to implement.
2-At the micro level, before setting out with any new technology, he tests its properties thoroughly. For example, benchmarking each part of the setup on its most intensive tasks before building with it. No "assuming it will work" based on breathless blog posts. Using his intuitive sense of what is expensive, he also optimizes expensive operations in loops by hand (like mysql complex queries).
3-A well thought out, and well practiced tool-chain for development. Ex: Using vim and knows it well, pays for tools to make life easier, has easy backups with time machine to easily go back, etc.
4-Diverse range of skill, and eagerness to dive into something new at any point.
5-An ability to rapidly debug problems. I haven't pieced together how this skill is built, except it involves the usual logic combined with a better memory than mine (so remembering what to rule out) and a pattern recognition that comes from remembering similar problems.