My language of choice for writing is still English, anyway.
German is limited in ways I notice too much because I speak the language too well and still can't express all my thoughts (not anymore, anyway).
Dutch is cool for rants about WW2 (that's how I got my A) but I'm not really fluent in it.
Danish is... in the works. Right now, I can say write "Hey guys, how are you? It's raining. Thanks. I am bored. Redcurrant pudding with cream! Cheese! Special offer! One two nine ten, raccoon, go away, come here! He is with mustard. Exactly!", which is really cool and makes me giggle when I write it down in English, and there are a few other words, but I can't really make a novel out of that in any way.