Now, this one will have you staring at your navel for hours. Have a few cups of expresso at hand. Consider your work for between Jan 1 2000 and Dec 31 2009 and decide which image gave you the most satisfaction, frustration, fun or angst ... and post it.
I offer up my choice personal image, titled "Natal Crease," taken in Martinique, on film, (remember film?) probably Velvia with my Hasselblad, 50MM lens. I've been looking at a large print of this photo since about mid-decade and still do not tire of it.