Well, you didn't mention "purpose", so I was torn as to which is my favorite. Now I must post two pictures I guess. Both are Winchesters, and their purpose and build are quite different. Both rate "favorite" status with purpose being the difference.

For trap and wobble clays, my Winchester Diamond Grade 101 takes the #1 position (12 GA):


For around-the-house/property, and clearing trenches in combat, the 1897 Winchester came in at #1: