... all comparable, in that they are simple and large.
My favorites are the 662 and 721. The 721 is my favorite design, but it does look very large on the wrist (large dial, smaller bezel). The 662 has great balance and a beautiful, rugged case and crown guard -- but you have to love and want the lighter dial. The 685 has great hands, but I just don't care for the bezel engraving. While I love the Cali dial, in general, I much prefer the 249 over the 931. So 721 and 662 are tied for first, followed by 685, then the 931.