Snubbys are snubbys!
With allot of practice you can be awesome with one, and they are fun at the range.
I think of them as a short range, save your life type deterrent. I don't see the need for +P and wouldn't choose a .357 (in a snub), but that's just me.
14oz, 15oz, 19oz, 21oz, it's all good!