The one that looked the most ergonomic sitting in the package turned out to not be the one my hand actually preferred after a full eight hour day with it. That alone was a little humbling because I'd basically judged all three on looks before I ever judged them on feel. What my hand actually gravitated toward ended up being slightly more rounded, slightly less textured and slightly shorter than any of the tactical looking options I tried, the ones that seemed like the obvious choice in photos. It turns out ergonomic preference isn't really something you can figure out by staring at a picture, it only shows up once you've actually lived with something long enough for your hand to form an opinion of its own..