The Holy spirit is the one that should be choosing the songs. The songs choosen should be in line with what pastor is preaching about or what is in his heart. I used to deal with a choir director like that because she wanted to sing only the songs that she liked and that is no way to do things. Pray and ask the holy spirit to put the songs in your heart that needs to be sung and remind everyone involved that it's not about us but, how the holy spirit is leading and what songs are out there in the atmosphere.
Some people get so caught up in self,, I don't like this song, I don't like that song but, when you are truly in tuned to the holy spirit and how it's moving, you will know that if the holy spirit puts a song on your heart, that song is definitely going to bless someone. When there is a song that is really strong in your spirit, that song needs to be sung because the holy spirit has that song pegged for somebody and whomever that is needs to hear that song and will be blessed by it.
One thing I always do before going to rehearsal or service and here it is. I say Lord I empty myself out and purge myself so that you can just fill me up and use me to your glory. It is not about me, the director, the pastor, it is about how you will use me and my gift today to be a blessing to your kingdom. God loves that humbleness and openess. We sometimes get in our own way with selfish thinking and personal agendas. It is truly not about us but all about God.