I only know the sizing of Ludlow, so can't compare to the rest. Comparing the Ludlow Slim (15.5 inch collar) with the Kamakura 15.4 inch collars on the Tokyo Slim Fit Manhattan and Tokyo Slim Fit then I suggest you go for the Tokyo Slim Fit Manhattan: The Tokyo Slim Fit Manhattan is about 2 inches wider on the chest than the Ludlow fit. It's about the same through the waist as the Ludlow fit. The Tokyo Fit Slim Fit is also about 2 inches wider on the chest than the Ludlow fit. It's about an inch larger through the waist than the Ludlow Fit.