For ten years on one wrist, I'd take the Speedmaster, Antonio. The history is a big part of it for me — the Moonwatch story never gets old — but I also find the chronograph more interesting to live with day to day, and it's the one that gets more of a nod from other watch people, even if the Sub is the one normal people notice first. The Sub is the safer, more versatile everyday pick, no question. Which way did you vote in the end, and are you actually shopping for one of them? If you are, let me know — happy to help you track one down.