I agree with your basic idea here; however, as many have mentioned the type of clothing ones forced to wear, activities one is engaged in, location and in the case LEO's, what the departments regulations require. One of the reasons I picked the Glock 27 & Glock 26 is that most LE agencies (To include my old one.) issue the Glock 22. (Other agencies use Glock 9MMs.) I like the idea of a smaller compact weapon easier to conceal that one can use the full sized issue mags (G-22/23 mags in G-27). A variety of holsters to fit the needs of what one is forcred to wear due to social events and/or weather is important as well.