Many have listed their single shot collection. Phil has shown us his favorite. Now, what is your favorite? And, "No," you don't need a picture. But pictures are nice.
I suppose if one goes by what one keeps returning to, mine is definitely the Contender Carbine. I am sure that mine in the .357 Max will remain my overall favorite. It has done great work for the years I have owned it. It is accurate enough for varmints, but is also capable for deer. It is also a great companion to the Super 14 T/C barrel and with my "home-made" Ruger in the same chambering.
Nothing especially beautiful, except in function!