Revolver and auto pistol rounds are totally different, or can be, in the revolver's favor. Auto pistol rounds have to feed into chambers without causing a malfunction, which limits the design of the projectile. Revolver rounds are manually placed in the cylinder, leaving the bullet design open.
A 158 grain pure lead hollow point moving at 1000 fps out of a revolver is better than any auto pistol round in similar weight moving at a similar velocity.
As far as carrying, my 4" K-frame conceals easier. My Glock 17 looks like a big "L" under my shirt, but the K-frame looks like a love handle thanks to the rounded curves.