For me, it would be Discovery. This is because many of the songs I can apply to moments in my life.
Take Face to Face, for example. It could be applied to the moments after arguments I've had with important people in my life.
Or Something About Us, which could be applied to when me and my fiancée first told each other that we love each other.
Over all, Discovery brings a lot of emotions, and my life... well, I've had a lot of emotions throughout my life.
What about you guys? What Daft Punk album could be the soundtrack of your life?