I carry a G19, I know pocket carry is a popular thing, especially a 5 shot revolver, but my philosophy on it is this.
I will most likely never use my carry pistol to defend my self, the odds are that good into my favor. but on the odd chance I have too, I want to have a tool that will help me move the odds of winning in my favor, and a 5 shot revolver, in my pocket is not going to do that for me. I want/need a pistol I'm intimately familiar with in a caliber that is effective and with sufficient capacity that I will most likely not require a reload.
I have no clue what my gun fight is going to be like, if it ever happens. Will it be 2 feet away? Will it be a 25 yd shot across a large space? If I could predict it, I would just stay home that day and avoid it all together.
I don't want to carry using the "It's better then a sharp stick" theory many apply, as were back to the odds again, which means I just as well not carry at all and still beat the odds. I carry for the stakes, not the odds as some one once said.
Again, my philosophy and mine alone, others are free to do as they like, just my $.02