[waluigi]

F#'s object model is very different from OCaml's. F# is basically the same as C# when it comes to objects, but OCaml has some sense of structural subtyping that F# lacks. On top of that, OCaml has a very powerful module system, whereas F# has a pretty standard one.

On the other hand, F# has computation expressions (essentially extensible syntax sugar for certain kinds of operations), as well some nice extensions to the pattern match system.

That's not to say one is exactly better than the other, they just focus on doing different things.