Question; are the only 3" currently produced the SP101 by Ruger and the M60 & 686 by S&W?
Edit: excluding .22's and other brands.
I've shot both of those Smiths and thought the M60 too light (esp for .357) and the 686 to heavy for CC...just my .02. My favorite shooter right now is the 4" 64 I just got. I think I'd jump on a 3" 64.