Between S&W and Ruger it come down to personal choice.
Yep... For example, I don't like the looks of any S&W revolver no matter how well 'blued' they are. The grip even look, well, to be polite 'different'. Others though think they are the prettiest revolvers on Earth.... If they made a good looking plow handle SA, like the Rugers, or USFA, or Freedom Arms, Colt, or.... Then maybe S&W would be worth a look
. That said, either will last a life time (or many more) of use. But better? Your own 'personal' call. Both will do the job intended for them.