Ok, you knew somebody was gonna do it - I'll take the beating.
My smoothest S&W revolver is..... a Colt Lawman III snub.
Wait!....... Before you come after me with a "hate crime" in your heart, I collect S&W's three to one over anything else. I have some Colts, Ruger's, etc. too, but S&W made, over time, 20 to one I'll bet, more models and configurations than Colt (50 to one maybe). S&W's are so much more interesting, there's almost no comparison. But, give them Colt boy's credit where credit is due, they did some fine engeineing & manufacturing. I hope they survive the labor unions - heck, I hope we all do before total national bankruptcy. We need the strongest gun industry in the world.