The only "pocket" revolver I have had experience with was a S&W 642. I am not a fan of having an exposed hammer on something going in a pocket. Too easy to snag on the draw. Having 6 rather than 5 is nice but for that my old model 66 2.5" was a better choice but not a pocket gun as it was a K frame with a hammer and moveable sights.
Mav, I have put the Colts in the pocket holsters (DeSantis Nemesis, Uncle Mike's cheapo) and have practiced withdrawing the same. I don't carry anything else in that pocket and snagging has not been a problem. Not saying it couldn't but it comes out easy. And, yes, 6 is better than 5 in a lighter package.
Additionally, Colt made a hammer shroud for the DS/Agent/Cobra that essentially makes them hammerless and adds a bit over an ounce. They are available and retrofit easily. You can still cock the hammer and go single action too.
Revolvers almost never ever jam, you don't have to worry about working a slide to chamber a round, you can actually carry in a jacket pocket and fire multiple times from within the pocket if you had too. That usually won't work with a semi auto. As a plus, it's light, < 20 oz loaded. I find that while I have a safe full of handguns, I don't carry the heavy ones, I carry the lightest.
The beauty is there's a plethora of pocket pistols from which to choose. The Agent works well for what I need. YMMV, so pick what works for you.