So I know the song and have heard it multiple times over the radio. I even find myself singing along with parts of the song, even thought I don't know it that well.
This song is amazing and I'm so happy that I got to hear it again. I know that you both had some difficulty with deciding a song but sometimes creative differences can come together and produce an amazing thing. CONGRATULATIONS!
The reason your songs are at the bottom are basically because I don't know them that well. I never say that there is a bad song. I just rank them according to my taste and familiarity. There was one song that I've never even heard before.
It was just the matter of never hearing the song before that put you at the bottom. I couldn't really get into the song all that much and I couldn't place it higher than any of the others.