I think they both have their virtues and their faults.
RUGER - Simple, rugged, reliable, heavy, less expensive, maybe a little rough around the edges, sometimes need a little fine tuning, especially the trigger.
SMITH - Elegant, finely finished, pleasing to (MOST people's) eye, usually a better trigger although it can be improved too. If you really put your mind to it (or you don't have much of a mind) you can probably blow it up, shoot it out of time, or stretch the frame a little easier than you could with a Ruger.
BUT, there's been a lot of talk lately about quality control problems with the new Smiths. If that turns out to be true, the scale starts to tip the other way.
And of course, there's the LOCK. AAAAARRRRRRGH!!!!!
If you have more than one kid, which one is "better"? Guns ain't kids, but the point is, they're just different.
I have Rugers, and I have Smiths, and I like them both in different ways.