Many years ago one of the columnists on the Sunday Times, Godfrey Smith, ran a thread trying to find out what people thought was the most beautiful sounding word.
All sorts of words were suggested but the one that came out on top was mellifluous.
I suppose because it's all soft consonants that helped and the connection with honey which would help create the taste sense when you think of it. One of my favourites is soften. Again no harsh consonants and that kinaesthetic connection.
Let me know if you have a favourite sounding word. And does it have a connection to your childhood or a favourite person or activity.