I really love the way Italian and Portuguese (especially Brazilian) sound.
I absolutely detest French. It sounds completely hideous and grotesque to me, but a lot of people love it.
I love the Russian language, but I'm clearly biased. I really love our consonant clusters and all the ts, zh, and "soft" consonants.
I love how written Arabic looks. Written Chinese looks cool as fuck too.
I was surprised to find out a few years ago that Mongolian shares the Cyrillic alphabet.
I'm also surprised to recently find out that Swedish isn't that ugly for being a Germanic language.
I'm also surprised by how extremely similar Bulgarian is to Russian. Sounds like funny Russian to me sorta like Ukrainian does.


Most languages can sound beautiful or horrible depending on how the native speaker speaks it. There are also regional dialects that can result in two countrymen not being able to understand each other.