If one is heavily invested in 10mm in various handguns and reloads for it I can see the appeal of it in a revolver. With the revolver one can use reduced target loads that would not even function in a semi and no brass chasing.

But the 44 Mag 629 Classic is what I've owned for nearly 20 years. It is not harsh to shoot with any magnum load I have used. It is easily the most accurate big bore handgun I have ever owned. I've not even began to try some of the 44 Special level loads yet. For me its the 629.