I know this has been probably been hashed out a couple million times, but I am interested in people's opinions and experiences.

I will be eligible for a LCTC permit in a couple of months and have been looking at possible concealed carry guns.

I own a Ruger SR-9 but it's too heavy and big, especially in the summertime when I wear shorts and t-shirts.

I have narrowed my choice down too a snub nose revolver as opposed to a semi-auto as no semi-auto is 100% free of jamming whereas revolvers are. I want something as 100% reliable as possible + revolvers have a lot less moving parts, safety devices, you don't have to worry about chambering a round, etc, etc. These are things I don't want to have to deal with if I have to use it or everytime I make the weapon safe.

To that end, the logical choice seems to be a s&w j-frame or a Ruger LCR.

Can someone explain to me what the difference is between all the j-frames?
360, 337, 342, 640, etc.

Is the LCR any good?

I have had a look around the net wanting to know the opinion of the LCR vs a j-frame but there doesn't seem much too cut it except that the LCR is newer so hasn't really been tested yet.

Any ideas and (especially) experiences will be helpful!!