IMO you'll find that anyone who's shot either a model 15 or 67 is a fan. To put it simply, the 4 inch tapered barrel K frame is noteable because it's the finest balance of features you can find in a revolver. Be it the balance of power and recoil, balance in the hand, or the balance between sight radius and practical accuracy, the tapered barrel 4 inch K frames are the pinnacle in terms of balance. As a result, if you need a handgun that allows you to get it into action quickly and allows you to shoot it effectively, the 15 and 67 will be the easiest to master and get up to speed fastest with.