I treasure both highly and have a HARD time choosing. I don't really think they are side to side comparable really. I would not want to be out either one of them. I give 53 a lot more wear, but 71 is such a beautifully twisted little thing that always gets me in a good mood when I use it. :-/
I think it will be 71 after all, even though 53 is way more versatile.