There’s no problem here, sell me the Ruger!

No, really, that’s a tough call, but for me I wouldn’t get rid of any of them.

But if it’s between a 28-2 and a Ruger Security Six, in my area/world the 28-2 is much easier to replace, as I have found very few of the Ruger SS series available (and buy almost everyone I have found, unless in rough/bad shape), so to me it would make more sense to sell the 28-2.

Glad I don’t have to make THAT decision, but I wish you the best of luck whatever you decide.