Not the poster, but i just made the same choice. My reasons: - Typescript has excellent dev tooling. I've been using vs code and intellij, and typescript integ

Not the poster, but i just made the same choice. My reasons: - Typescript has excellent dev tooling. I've been using vs code and intellij, and typescript integration is first class. - Typescript seemed to have a richer type system. I didn't look deeply enough into flow to know for sure though. - Outside of facebook flow didn't seem to have much traction. With angular 2 being built with typescript I have more confidence in it sticking around.