F# is an awesome language that I hold very dear, but it is a castrated form of OCaml. It has only a few features that OCaml doesn't have. For example Type Providers or Unit of Measurement. These are nice and useful features, they're not gimmicks, but they're not fundamental.
On the other hand, Scala isn't a hollowed out Haskell. Haskell, admittedly, is a more powerful language and has features Scala doesn't, like a linear type system. And it's just different, non-strict, whereas Scala is strict.
But Scala is also very powerful in other fundamental areas, where Haskell is weak. Scala has a superior module system, it's biggest strength IMO. Haskell's modularity story is that great AFAIK.
That's not quite precise, IMHO.
F# is an awesome language that I hold very dear, but it is a castrated form of OCaml. It has only a few features that OCaml doesn't have. For example Type Providers or Unit of Measurement. These are nice and useful features, they're not gimmicks, but they're not fundamental.
On the other hand, Scala isn't a hollowed out Haskell. Haskell, admittedly, is a more powerful language and has features Scala doesn't, like a linear type system. And it's just different, non-strict, whereas Scala is strict. But Scala is also very powerful in other fundamental areas, where Haskell is weak. Scala has a superior module system, it's biggest strength IMO. Haskell's modularity story is that great AFAIK.