I really like Ruger Single Actions. They're my favorite sidearms, particularly the Super Blackhawk iterations.
I do spring jobs on them and usually hone the triggers just a hair to take out the creep, and they are good to go for thousands of rounds of single action fun.
First Group
Top Row: Super Blackhawk Bisley .480 Ruger; Super Blackhawk Bisley .454 Casull with the grip frame swapped out for the SBH Hunter grip frame
Second Row: Blackhawk Bisley .41 Magnum; Blackhawk Convertible .10mm/.40 S&W
Bottom: Single Six Convertible .22LR/.22 WMR
Second Group
Top Row: Old Vaquero .45 Colt; Blackhawk Convertible .357 Mag/9mm
Second Row: Blackhawk Bisley .45 Colt; Blackhawk .357 Mag
Third Row: Single Six .327 Fed Mag; Super Blackhawk .44 Mag
Bottom: Bearcat .22LR
I am in the process of swapping the 4 5/8" barrel for a 7 1/2" barrel and replacing the standard BH grip with a square trigger guard SBH grip on the .44 Mag.