I am not a fan of open carry and whenever I see somebody open carrying, knowing they have the option to CC, it just makes me wonder about them and their choice. It's none of my business but I just want to ask them why.
But, if for some reason we are in a world where concealed carry is out, and OC is the norm......I think I'd open carry a Glock 19.... the only reason I carry a 43 is because it's smaller and easier to conceal, if concealment wasn't a concern I don't think the weight or bulk of a 19 would bother me at all, I've found the 19 to be just a lil bit much for CC EDC......the 43 is a good compromise.