Gonna pick up a Judge and loan it to my sister in law who just moved out on her own for the first time. Its either that, or a .38, feel more comfortable with her having a judge though, loaded with one of the new SD shot shells. Looking at 2.5in barrel, there is the standard blue steel, titanium cylinder, and the polymer frame. What are the differences, only that I can see is about an ounce difference in weight. Which would you go with and why?