I've owned and shot mostly revolvers most of my life, but lately I got on a Semi-auto pistol kick.I like revolvers best as far as control and accuracy. My revolvers are Rugers and are .357 mag. ammo.
The pistols are Glock .40 cal....... A Ruger .45 cal....... Two 1911"s(this is no longer a name brand but a style/model) They are .45 cal. as well.
I know I'm going to get flack but I don't want any cal. under a .357 mag........ There are a lot of professional forces that use 9 MM and do well with them, so my opinion is what makes me happy.
I carry a 5 shot revolver with no exposed hammer and no safety(like most revolvers), so the only way to control the weapon from going off when not wanting it to, is to keep it in a holster that covers the the trigger and when handling it keep my finger out of the trigger housing.
Revolvers are considered more accurate and less complicated but in most cases only hold 6 rounds. Where auto's are thinner for carrying, and can present malfunctions when using, so a good name brand in most cases will cut down on malfunctions. Also having a match barrel helps the auto's as well.
So far I'm liking my 1911 (PARA Black ops.) it's heavy which helps me control fire it, where lighter hand guns are suited for carry, but not so much for fire control, so try to hold and dry fire as many as you can to find one that suits you.