This being a S&W forum, I would love to say it would be my Model 19-4. But I can't. As much as I like that gun, I do have fairly small hands and the K frame is just a tad to big for anything other than shooting at targets. I don't currently own a J frame so that's out. If I could only keep one of what I have, then it would have to be my stainless Combat Commander. Yes, it's a Series 80 but after Jim Rose of Casset Gun in Jacksonville did some trigger work, it has a great feel and breaks at 3.25 pounds. Plus, I have several hundred empty brass, primers, 200gr lead SWC and an unopened canister of powder for it so ammo is taken care of.
CW