Many people have given you good points as far as practice, and different thinking behind carry guns. All that is true. Then comes to what you want. If you don't like shooting it, you won't practice, and probably won't carry it. So get something you like to shoot. Hopefully, you have friends, and/or a range that will let you rent guns to try.
My 1st pistol was a sig 229 in 9mm. I read forums, reviews, and went to the range & shot several different models before I decided on this gun. Part of my reasoning was that I wanted something my wife would shoot too if she ever had too. So the 9mm was for less recoil, and the 229 has no safety, so you just have to pull the trigger.
After a year or so, and shootiing a buddy's 1911 kimber, I got the fevor for a new gun. I almost bought a Kimber, but as luck would have it, that same buddy bought a Dan Wesson CBOB 1911 for his son. I loved the way it felt in my hand. So I put one on order. I have since bought another Dan wesson, and if I could justify it, I'd get the CCO. But 2 is enough. And if I could have only 1 gun, it would be my Dan Wesson 1911 CBOB.