I'll take a 15500 over the 15300 or 15400 any day. I prefer the proportions, hour indices, just the right amount of bezel, movement sized to the case, date window position and disc color.
Overall the 15202 is the most harmonious proportionally and the dial is just perfect, but it's much more svelte and delicate in appearance.
I guess if you have 6.5" wrists, that is where the 15300 or 15450 shine though.
RO composite by
uscmatt99, on Flickr