It depends on who is using it! Shakespeare did a great job with English. So did Shelley. On the other hand, George Bush didn't make it look so good.
On that account, Russian suffers pretty badly. (I wonder if anyone gets that joke.) So does Chinese. In fact, I can't think of any language that some idiot hasn't made look bad.
German was widely loved in Europe until you-know-who messed it all up. I can't speak a word of Russian, so I am clueless there. But just seeing it in print puts me off already.
For sound and appearance together, Japanese comes top of the table!