[williamcotton]

There's no need to choose between TypeScript or Babel!

You can use TypeScript with --target es6 and then use babel as a secondary transpiler.

[dangoor]

Isn't the problem that the TypeScript compiler doesn't support all of the ES6 features that Babel does?

[claar]

This was my first thought too, but this screws up source maps and I can't think of how to fix source maps when using two transpilers. Any ideas?