UPDATED
I now just install one extension that installs all the best angular extensions called Angular Essentials from John Papa
Everything below here is reference to how I use to get all the extensions seperately.
I get asked every time I open VSCode what extensions I use for VSCode and Angular2. Here are my updated favorites. I have a lot more, but these are the ones I can not live without at the moment. Thanks to the authors of these plugins they rock.
1. angular2-switcher
2. TypeScript Importer
3. Wallaby.js
4. Angular 2 TypeScript Snippets
5. tslint
6. Path Autocomplete
One to watch out for is https://github.com/angular/vscode-ng-language-service which gives you code completion in your HTML templates. I use it and a big fan of where this is going.
Figure: Autocomplete and errors in the HTML!
If you like these or want to suggest others, please leave a comment below!