I didn't realize that your restricted selection was job related.
But this one sentence actually settles the issue for you.
The one that you'll have the most confidence in is the one that "feels" right when you shoot.
You'll never develop confidence and control if the fit ain't right.
I guess the fit is it. All I can say is that I have total confidence in my training program. 5 full days of basic qualification and maintenance training. 7 days of advanced and tactical training plus another week of paintball and laser-based tactical street training and tutoring. I've got a lot of work to do but from what I can see my company of recruits looks like its going to take its instruction deadly serious-maybe a product of not growing up around firearms. Nothing is taken for granted.