What is the most important thing of a song? choose one, the lyric or melodies?
Well they make a song together.
But I want to choose one, the melody is more important. You can enjoy a melody without the lyrics. Mostly lyrics are not so much interesting without melodies. However, you may find some really beautiful lyrics.
I don't have doubts, the two things together. The most important thing is harmony between lyric and melodies...