The S&W hands down. Both revolvers are tough, durable, and made to last several life times. Fit, finish, and trigger on th S&W are better. I don't own a -27 or -28 right now but I have owned both. I currently own a perfect Python and I shoot it about every range trip.As for -27s being too valuable to shoot, if I owned one, I'd shoot it. It would be a joy to carry and shoot. It was made to be shot, so why not enjoy it? YMMV.