I had to vote for the 70-200mm f/4 L Canon because out of that list of three widely disparate lenses, it is the only one I have used. It's a nice, small lens, 67mm filter size on the model I used, which was not a new one, but rather a lens that now must be 7 or 8 years old. 70 to 200mm is a very useful range of "normal" telephoto focal lengths, and very handy to have in a single zoom lens.