Do you have an unusual left-field choice of favourite track by an artist. On the one hand (like many), Sometimes is my favourite MBV track and you see it top a lot of lists, but for Broken Social Scene my favourite is Da Da Da Da (from the Bee Hives compilation). They have loads of great stuff, but this is THE track I'd take it forced to have only one of theirs.

https://www.youtube.com/watch?v=UTrazAjXeMk

Sing the praises of your unusual favourite song choices....