Typescript hits that sweet spot of popularity/portability/type-safety, and although ReasonML is superior in nearly any technical criteria imaginable, I still reach to TS when I'm starting new.
I've played with them quite a bit from the first time they were mentioned on HN. I really like OCaml. But the tooling and ergonomics are heavily in TypeScript's favor at this point, and at least for me, that makes a bit difference in day-to-day work. Anyway, my favorite of that variety of languages is PureScript. It's almost perfect.
I wholly agree about PureScript. Elm's also nice. I like the fact that it is a little dumb down (same could be said for early Java and Go), it creates code everyone can read. While it is still very Haskelly in day-to-day practice. In fact I'd say PureScript and Elm are stronger typed than Haskell (as e.g. `head` in Elm evals to a Maybe).
