I like the 66's and 19's, but that's merely an opinion based on years of ownership and use. I've run thousands og full tilt magnum loads through my 66's, both are still nice and tight, and accurate beyond expectation. But they do have an inherent weak FC, that if the owner is not attentive to, regarding build up, they can fail early on.
But for a range gun that will probably live longer then me under the most extreme shooting conditions, the 686 or GP100 would be a first choice, IMO.
But there are lots and lots of very fine .357's to choose from, making this poll rather very subjective to our personal flavor favorite.
GS