I agree; F# is probably my favorite of the "compromise" functional languages [1], where you can drop into the "wrong" way when necessary. F# pushes a more or

I agree; F# is probably my favorite of the "compromise" functional languages [1], where you can drop into the "wrong" way when necessary. F# pushes a more or less pure approach, but in some cases, like when mutation will be a bit easier and/or faster, it's easy to do that as well. I also think that even F#'s OOP is actually really pleasant...If nothing else, it's a lot more terse than C#'s. I miss writing it; I haven't had a job using it in a few years but I really enjoyed writing code in it when I did. Most of my personal projects haven't really been able to use .NET for awhile, so I never seem to have an excuse to play with F# in my personal time. I never got into C#, so I can't say that I really feel the pain of the C# transition into F#. [1] At least in the typed world. I'm also really partial to Clojure.