I have a 63-1 4", and love it. I have fired the Ruger, and while it was O.K., it isn't a S&W. The weight difference is substantial, and the 63 carries much more easily. I hated the fiber optic front sight on the Ruger, it hopefully will have a replacement option at some point. I couldn't group well with the Ruger, and blame it on the fiber optic front sight. The trigger on the one I shot was fair, but gritty and long. I wouldn't hesitate to buy another 63, but would pass on the Ruger.
As was mentioned earlier, the S&W has a large selection of grips available to fit anyone's hand. Good luck with the Ruger.
