As someone who carries a sidearm for his job (ATFP Camp Pendleton) here's the real deal with buying one. Get the one that feels most comfotable. The more you enjoy holding a pistol, the more you'll enjoy shooting it. The more you shoot it, the more accurate you'll become. Don't fall into the common trap that bigger is better, forget that noise. For you, the perfect weapon is the one you can shoot straight with.