[kvb]

I think there are several reasons to prefer F#. First of all, you can use all of these features in F# today, but when's C# 7 going to be available, and will the "strong interest" features (not to mention type providers) all make it?

But more fundamentally, adding features like these to C# is awesome, but there's no way to remove now-obsolete patterns without breaking legacy code, so it's still possible to shoot yourself in the foot in many ways that you can't in F#.

Some other authors have also addressed this question recently: [1], [2].

[1] http://fsharpforfunandprofit.com/posts/is-your-language-unre... [2] http://blog.ploeh.dk/2015/04/15/c-will-eventually-get-all-f-...