Just curious, what is the difference in width at the cylinder between a Ruger Six and a K-Frame? I ask because most people say that width (not length) has more impact on how easy a piece is to CCW.
Having held both side-by-side, the cylinder of the Ruger is clearly larger, but I was unable to measure it at the time.
As far as trigger feel is concerned, I do prefer Smiths but have owned a Taurus 66 that was quite excellent (except for a hint of stacking at the end of the pull). I've never owned a Ruger (hope to one day), but I've tried a number of different models at the range or handled them at gun shows, etc. There seems to be a LOT of variance in trigger quality with Rugers: some are Smith quality, some are well, pretty miserable. Just try before you buy!
One day I will get either a 2.5 or 3" K Frame or 2.75 ot 3" Ruger Security/Speed/Service Six. Haven't decided which, both are great guns. If you prefer adjustable sights (which the Security Six has), I'd save a little longer for the Model 19 if they are more expensive than the 13 in your area.