I found this video, comparing German to other languages, hilarious. The German guy is clearly exaggerating though.
Here is an article on that:http://www.thesmartset.com/article/article03041401.aspx
Which language do personally prefer?
For me Arabic is the sweetest language to listen to especially the Qur'anic Arabic. It is difficult to say which language is obnoxious because any language you don't understand sounds as such. Some languages are however unmistakably irritating. Our Japanese Teacher said Chinese is terrible because they speak from inside stomach
(I still can't figure how that is..lol).
Charles V, Holy Roman Emperor, said “I speak Spanish to God, Italian to women, French to men, and German to my horse.”