Before I bought my first handgun, I was set on a Beretta 92FS. I was deployed at the time and decided to pick one up when I got home. The Beretta seemed like a logical choice. I trained and qualified with it, carried it, used it, and was overall happy with it.
However, once I got home and decided to make my first handgun purchase, I walked out of the shop with a S&W 681 4" .357 mag. It's an amazing shooter, and loaded with .38+P is my nightstand gun.
I carry it occasionally, but I don't prefer to carry full size.
So my next handgun purchase was for concealed carry. After about 3 hours with a Bersa Thunder (thought I'd like it, didn't), I took home a S&W 642. It's still one of my number one carry options.
When it comes to concealed carry, my Sig P938 gets the most time. My 642 (along with the 442 I own) gets a little more time in the winter since they fit so nicely in my craftsman vest front pocket. A newly a purchased LCR9mm is trying to make the cut, but the jury is still out.
I don't know where I'm going with this..... Even though if I KNEW I was going to need a handgun, I'd probably pick my M&P 9mm FS, and even though I mainly carry a subcompact semi-auto, I have great love for revolvers. And without a doubt, they'll always be a part of my collection.