I own 3 single action "cowboy action" guns and just love shooting them.
Ruger Single Six 22LR/22Mag 5 1/2" bbl
Ruger Blackhawk 357 Mag 4 3/4" bbl
Ruger Vaquero 45 Long Colt 6 1/2"
I know they are not what is probably recommended for carry or self defense, but they are fun to shoot, have minimal recoil due to their size and weight, and very safe and user freindly with the Ruger transfer bar system.
I do have other concealable handguns (KelTec 32, SW 38sp) but living on a ranch in real rural western state, my SA revolvers are invariably in my pickup, and I feel safe.
These guns will pop a hole in any attacking bad guy just the same as the cool semis.