I prefer the 649 no dash .38. 90% of the time, this is my carry gun. Great for pocket carry and no peeling finish issues. I know that single action capability is frowned on now days but I like it. The steel frame makes practice tolerable. I have a wide variety of holsters for it. This makes wardrobe choices much easier. I carry two speed strips and have extra ammo stashed in my Jeep and truck.

My wife prefers the 642.

The SP101 is a neat gun. I have two. You can do a pretty decent action job yourself if you watch some Youtube and are careful. The SP101 seems to be very rugged. My problem with the SP101 is that I can carry a pretty serious autoloader for the same weight. If you are a true revolver guy then this doesn't matter. I have pocket carried one but its really too heavy for that.

If you get a .357 snubbie you might want to check out the Remington 125 grain .357 Golden Saber.