The rendition of Wendy that Ben sang on the radio is my hands down favorite BK song ever.
(The version that goes: I feel sick today I don't feel like me
Someone took your smile away Like a fortune cookie
And no one loves till it's gone.)
I used to sing this song to my baby sister like a lullaby, and later I sang it to my son.
If I had to choose only 5 songs it would be really difficult, but... Let's say my top 5 for now would be:
Wendy
Family Tree
Debbie Don't Worry Doll
Walk On Me
Gossip