Ive heard mixed about all the DB guns. reliability isnt the greatest.
If you just are looking for size, the LCP beats out the LCR by a bit. The LCR isnt all that much lighter than some of the jframe options out there either, and its still kinda big. BUt, the LCP sucks to shoot enough to get good at shooting it at distance.
(I know people say its a belly gun, but I would rather stop the threat on my life before they get that damn close)