Well, I was thinking that it's possible to like a language in a very pure, abstract way- C# is a great example of that. Lambdas, LINQ, anonymous functions... it's a slick, slick language. If I'm looking at language alone, it's probably my favourite.

But I can't do anywhere near as much with it.

I love Haskells purity -- simply because it is so audacious and so different from everything else. I love Lisps and how it made meta programming first class even though I will never be in a position to use it in my day to day work.