One of my all time favorites is Pushing Me Away, I just love the emotion in that particular song. The live piano version of it is even better in my opinion. Iridescent is always fun too, I always get inspired by the lyrics...Do you feel cold and lost in desperation, etc. I've felt cold and lost in desperation more than once, so when I sing that song, I always try to give it my all. And of course, My December, who can forget that? Loved that song from the first time I heard it. Especially if I'm feeling down and out, it's another good one to sing, it really helps me to get those negative emotions out.