Buy one of each if you can, and tell the wife it is for an experiment in longevity of the firearms. You could tell her you are developing a spreadsheet on the shootablility as well!
Seriously it depends on what you want to do with it. For concealed carry I'd go with the Smith, and it may hold it's value better than the others. If I were shooting heavy loads consistently (or wanted something for pistol whipping bad guys with) I'd go with either Ruger. Both are built to last! I know some folks have had good luck with the Taurus, and it does feel good in my hand. I have questions about quality control and longevity though.....
Enjoy the search, and shoot as many of them as you can!