The best gun is what you can shoot the best, under pressure, quickly. I carry a 357 off duty, but am limited to a 38 ON duty. Go figure. For simplicity, I carry 38+P Gold Dots in both, the Short Barrel Variety. The 357 hits harder, and does more damage, but personally, I don't shoot it all that well in small, light guns. But since I train weekly with my 38's, I have complete confidence in them. Being able to draw from concealment quickly is a bigger challenge to me than putting the bullet where it belongs. And if you can't put the bullet where you want it, quickly, on demand, the caliber is totally moot!
Papajohn