[amd6547]

The only comparison of the 30 carbine to the 357mag I ever heard growing up concerned muzzle energy of a typical revolver compared to 30carbine energy at 100yds. Of course, 357mag carbines weren't real common.
I went through a trapper lever action phase, having owned a few, in different calibers.
Great guns, and a perfectly valid choice for many uses.
I've also owned various 9mm carbines, an ar, etc. The M1 carbine just has a perfect fit for me, and I prefer it and it's round over them all for home defense.