this is a legit question for a language learning website.
Some people here is asking in the discussion about the meaning of life, the existence of ufos, and so on. are you serious?!
Well, in my opinion, English is "aight", but certain British accents are to die for.
The best would have to be Korean (Yeshhh), Spanish and French
The worst, I really don't think any sounds bad, some are just harsh on the ears, Welsh and Dutch??