Here's what I've gathered so far:
Angular 2 scaffolding
Yeoman generators
generator-angular2
Outdated and very rustic. No preprocessors.
generator-gulp-angular2
Outdated. Out-of-the-box build.dev fails. Features SASS and Jade.
generator-angular2-gulp-webpack
No preprocessors.
Other options
angular-cli (Official generator)
Based on ember-cli, still on alpha stage.
No preprocessors. Also, I don't see a way to add preprocessing, except by creating Ember add-ons:
http://www.emberaddons.com/.
Angular 2 Seed
Standalone scaffolding. Features Gulp and Webpack. Has instructions on how to install preprocessors. Needs manual Gulp configuration when
adding dependencies.
All code is written in Typescript.
Angular 2 Seed (ng2-material)
A fork of angular2-seed incorporating Material Design (ng2-material).
Angular 2 Seed - Jade
A fork of angular2-seed incorporating Bootstrap and SASS and Jade preprocessors (by yours truly).
Angular 2 Starter
An Angular 2 Starter kit featuring Angular 2 (Router, Http, Forms, Services, Tests, E2E), Karma, Protractor, Jasmine, TypeScript, and
Webpack by @AngularClass.
angular2-sass-gulp-boilerplate
Although it's titled "yeoman generator" it just seems to be standalone scaffolding.
slush-angular2
Generator for Slush.
