Chaver: Mi Adir is normally sung once the chosson is under the chupa. The question was what song to walk down the aisle.
gavriel613: I am not sure I agree with your comment. At that moment the chosson wants to hear the music to a song that he has an emotional connection to, not necessarily something the kallah agrees to. The kallah is generally not near the chupah room at the time and probably wouldn’t hear it anyway. I believe the same thing for the kallah. She wants to walk down to a song that she has an emotional connection to. Personally, I wanted my wife to walk down to Eishes Chayil. She didn’t want to and therefore did not.