I've become a Vue.js fan. It matches closely to my ideal of using custom elements and a good template engine to build componentized UI.
The Vue community is also adding pretty good TypeScript support with add-ons.
This seed moulds that into an Electron project that uses webpack to translate Vue and TypeScript into two JavaScript files, one for the Electron main and one for the renderer.
TODO: Also lots of Vue.js examples show off webpack's hot reload capability. Need to see what makes sense with Electron.