I don't own either, but I'd have to say it's just your preference of single vs double action.
My hunting handgun, a S+W 629 in 44Mag is double action, but I carry it to the outhouse with me in bear country and I'd have a hard time justifying the purchase of a second gun, so for me the double made sense.
Rugers are built like bricks. Hard to go wrong with either. I don't shoot single action, but maybe the lesser felt recoil of the single action the "rolls upward" in you rhand might make a difference to you.


Keep 'em all in the Bull.