I like the Pug and Black Widow designs better than the standard Mag revolvers because of the more secure cylinder pin, thicker barrel, better sights, and the nicely machined top rail.
I would go with the Pug if it's strictly for CC. I like the small size and the white or tritium dot sights. I consider the Pug the ultimate CC gun, and would not feel under-gunned with one in my pocket.
If you want to shoot at longer distances or if it will be used for practice, plinking, camping, kit gun, etc, then the Black Widow Convertible is the better choice. A little less concealable, but it has a larger grip, longer sight radius, and the ability to shoot .22LR for practice or plinking. My BW fits my hand perfectly and I'm getting pretty good with it thanks to daily practice with subsonic .22LR.
It's also easy to mix-n-match or customize. Some guys like the BW but put smaller grips on it for carry. Some like the Pug but need a larger grip to shoot accurately.
Hope this helps.