Fascinating photographs, Jim. The photo of the boat sailing, certainly looks as though it was taken in Hong Kong. Do you notice that she is 'rowtor' sailing: but the guys are hauling on sweeps, not 'yulohing'.
What really intrigues me in the model, which looks, and I assume is, accurate, is the mizzen mast. It seems to be held by a large, fore-and aft timber, the stern rail and a large component of faith!
The caption on one photo of a Big-Eyed Chicken in Setting Sails is captioned: "Big-Eyed Chicken" under full sail off Hong Kong's Shek O." But, as you say, apparently they originated from near Swatow and a further photo shows one from Swatow.
But as for a favourite - I wouldn't be able to say: Foochow traders and pole junks, junks from Amoy, the deep sea trawler of Hong Kong, or the extraordinarily-rigged boats of Ningpo - they all make my a bit misty-eyed, in truth.