Well, I have the Glock 33 .357 sig and have just read that the .357 sig comes very close to the .357 mag, but the 10mm does not. Says in velocity maybe, but actual delivered power, no. With that being said, I will hold pat on the 10mm for now.
lol - I read pretty much the opposite - excerpt -"Some commercial loadings are as follows: .357 Mag: 584 ft·lbf (792 J) for 125 gr @ 1450 ft/s; 10mm: 750 ft·lbf (1,020 J) for 200 gr @ 1300 ft/s;[19] .41 Mag: 788 ft·lbf (1,068 J) for 210 gr @ 1,300 ft/s (400 m/s). "
My position is I don't know what is more powerful - and I expect most of the forum "experts" don't really know either. Find what you are happy with (10 mm in my case) and be happy (as long as its not .22)
Note: Of course I was not referring to THIS forum's experts