I am forced to edit this...
"Favorite", or what do I shoot the most? There is a difference.
I've got a lot of Blackhawks and Super's, both Old Model and New Model. My Old Models are gorgeous, with really nice actions and beautiful blueing. Although they are more "favorite" than my New Models, the Old Models never see the light of day. My New Models, however, are my very regular companions, and are shot more by me than any other firearm. Even within my New Models, I've got a few that are used more than most others. Namely, my 4-5/8" .357 convertible (almost always with the 9mm cylinder) is my most shot center fire revolver. That could soon change, as I recently acquired a NM Flattop .357 convertible. Not quite the natural shooter that the full size Blackhawk is, I'm hoping to overcome that, as I prefer the Flattop size. Next in line is a 3-3/4" Super Blackhawk. It's just a nice shooting and easy to pack revolver. Many others are rotated in and out of my shooter-battery, but a revolver that just might find its way into the top three is a 3-3/4" Birdshead New Vaquero .45 ACP. This is a very nice shooting gun, with a distinction of being one of the few fixed-sight revolvers that is regulated to my point of aim.
Now, back to "favorite". Even though I prefer to shoot SA revolvers, my all time favorite Ruger revolver, and maybe my all time favorite Ruger product, is the Security Six series. I own many, and like my Old Model Blackhawks, seldom do they see the light of day. I have one that is occasionally shot and carried. A 2-3/4" stainless Security Six with a round butt. Easy to carry, and even compared with longer barrel revolvers, extremely accurate.
WAYNO.