I shed a tear or two when I first read the lyrics and listened to Teddy Bear and Memorial Address.
Other songs that got me emotionally were Powder Snow, A Song For Xx, and No More Words. I'm sure there are quite a few others too, but these are the ones that first come to mind.
Originally I just thought that No More Words was OK, and was probabally some kind of ballad. But then I read the lyrics and completely had my mind blown.
Some of her best lyrics are in that song I think.