I clicked commuting because that's the vast majority of my riding -- I haven't gotten to work other than by bike in a year and a half, and that was one day because I hadn't gotten studded tires yet.
I clicked training, because my son and I built our miles up this spring and summer by riding long miles together to prepare for RAIN 2011.
I clicked other, because the list didn't have touring, which I'd have to say is my favorite.