"Best" is such an interesting word. I have an old 4" Model 10, a Wells Fargo turn in, most of the nickel is worn off, but it is an exceedingly good shooter. My first Model 19, a 4", was excellent but I blew it up. My Model 27 Classic comes pretty close to defining "best" in a host of ways.
However, because I think that I still shoot so amazingly well with my old Model 10 2" snub gun that I bought new in 1981 it, too, comes amazingly close to defining "best".
But I cannot gainsay my Ruger Vaqueros, since you didn't limit us to S&W. 4 5/8" barrels as I recall (haven't thought about it much, lately, but I believe that is correct. They are deadly accurate at close and long range. They're pretty close to being the best, too.
I expect my M25-5 will become the best once I shoot it enough.
Best is so hard to define......
***GRJ***
However, because I think that I still shoot so amazingly well with my old Model 10 2" snub gun that I bought new in 1981 it, too, comes amazingly close to defining "best".
But I cannot gainsay my Ruger Vaqueros, since you didn't limit us to S&W. 4 5/8" barrels as I recall (haven't thought about it much, lately, but I believe that is correct. They are deadly accurate at close and long range. They're pretty close to being the best, too.
I expect my M25-5 will become the best once I shoot it enough.
Best is so hard to define......
***GRJ***