Here are just some personal opinions, 1: based on carrying a handgun almost every day for 27 years in LE, to include a Mod #27 S&W; staying within the parameters of the gun you want; and with the note that you need to follow your local laws and such:
Several posters have mentioned if your planning to shoot standard factory loads...you might consider S&W .357's in a mid sized/lighter frame. I'll second those comments...especially if your thinking of carrying the weapon on you for any extended time in a normal belt holster. The larger frame guns after a time just feel heavier and wider than their actual size...going thru brush or climbing trails in a worn holster. In a semi-concealed carry...the big frame really gets big. IF you want the full benefit of a .357 (velocity)...a 5 or 6" barrel is better than a 4"....but beyond 6", sitting with a standard belt holster can be an issue.
I'll add that stainless is the way to go...for fog/rain+gun+holster+time can be a bad combination for a blued gun. Also, when you scratch it/drop it...ss can buff out quite well...sort of.
Look and get top quality carry gear and think as carefully about how you will carry it as "what gun to buy"....this is where many folks skimp and at the end of the day suffer for it. There are a lot of dual wear holsters for mid sized revolvers (quality, specific fit...not just a nylon "bag" labeled "revolver holster", try: Bianchi, Safariland, Galco) that can be worn strong OR crossdraw which provide flexibility in how you carry, both in open and concealed carry. And really...this is why you choose a revolver/pistol over a long gun - carry it on you. Not buried in a pack.