I have several of both.
S&Ws are a bit lighter, can have their triggers DA pull tuned a bit better, and are slimmer.
The Rugers more robust.
For heavy field use I prefer the Rugers, for self defense the S&Ws.
Both can still perform the task of field use and SD.
"The government has confiscated all of our rights and is selling them back to us in the form of permits."