I mentioned in a top-level comment that F#'s "lightweight" syntax is basically what I want when I use OCaml. I know ReasonML is a thing, but if I'm writing OCaml I don't want it to look more JavaScripty - I prefer syntax like "match x with" over "switch(x)" for pattern matching, for example.
I know some people dislike the way F#'s newer syntax makes whitespace significant, and that's fair. But the older verbose syntax is there if you need or want to use it. For example, something like
let things =
let a = 1 in
let b = 2 in
let c = 3 in
doSomething a b c
should still work in F# like it would in OCaml.