I love both S&W and Ruger revolvers. If I were to buy new today, it would ONLY be Ruger.
I have had bad luck with S&W quality control on my last two S&W purchases. I have some older S&W revolvers that are butter smooth, but my recent ones left me fit to be tied.
My recent 627 PC 5 inch was shipped from the factory with a bent frame..! Yes, the barrel was threaded in crooked because the frame was bent. My 360 had a horrible timing issue. S&W fixed them both but it took over 60 days.
I have not a single issue with my recent Ruger purchases (Redhawk, SP 101). My LGS owner, great and honest guy, said he ships so many S&W revolvers back in the last year that he would personally pick a Ruger.
And yes, S&W triggers are smoother. On the other hand, you can make a Ruger trigger quite good, if not as good, as a S&W with a Wolfe Spring kit and an India stone. In fact, recent Ruger triggers are not as bad as they used to be.
The Rugers just seem to be built like a tank or a John Deere.