I should mention that I have had S&W models 629, 64, 19, 686 and a K22. The only Smith that I have at the moment is a model 37 Airweight and my wife has a model 60. Smith & Wesson makes an outstanding revolver.
Ruger revolvers that I have owned are three 6" GP100's, an SP101, a 4" Security Six, a Blackhawk in .30 Carbine, a Blackhawk in .357 magnum, a convertible Vaquero in .45ACP/.45 Colt, a .44 Vaquero. All were excellent firearms and the .30 Blackhawk was just a hoot to shoot.
If I were looking for an absolutely rock solid revolver, the GP100 is the one out of all of the above listed handguns gets my vote.