I'd say, based on limited experience, choice of snubby depends upon how you intend to carry it, and your tolerance for pain. I am, personally, set on pocket carry, but do not claim it superior than inside or outside the belt, shoulder holster, &c.
About 9 yrs ago bought a S&W 342, titanium cylinder, scandium aluminum alloy frame & barrel, stainless liner in barrel 13 ounces. Great for pocket carry. When I first got it, practice was painful after about 40 rounds (one handed). The date on my driver's license has caught up with me, and shooting one handed is painful after one round. So much for practice.
My dual approach was first, do the obvious & shoot 2-handed like everyone else, and use target wadcutters. I like nice clean holes.
Second, got a Model 640 stainless, about 24 ounces. Practice is now comfortable with wadcutters & can get off 5 rounds of .357 mag without tears. I will stay with standard .38 Spl ammunition for all practice & perhaps for carry. The reputation of .357 as a one-shot stopper can not be ignored, but one must still actually be able to hit the target under stress. I'll get in a hell of a lot more practice w 38Spl loads.
If you choose to carry in a holster, then by all means get a stainless steel revolver, and not aluminum (the weight makes shooting more pleasant = more practice).
Blued steel guns may run smoother if you don't mind looking at the holster wear & effects of sweat. Specifically, carbon steel (well, chrome-moly steel really) against steel runs smooth, stainless against stainless tends to gall. You may check this yourself by working the slides of a stainless 1911 vs a carbon steel 1911 of comparable quality. Stainless guns are popular because of appearance and not at all because of superior function or mechanical toughness (metallurgist speaking here, can y'tell?).
Personally I'd check a lot of internet reviews, along with past issues of Gun Test magazine, to aid in decision amongst various models of Ruger and S&W. So far as I know there are no other current makes of double-action revolvers upon which I'd care to depend. As in, forget Charter Arms.