I find that I prefer the DA trigger on a Smith over that on a Colt, or at least the from-the-factory trigger. The Colt trigger "stacks"(meaning the pull weight increases) right before it breaks and the hammer drops. By contrast, the S&W is perfectly linear across the entire pull(except for J frames, which have a slight drop-off right before the break)/ When I first bought my Colt, I couldn't hit anything with it in DA. Dry firing showed me that I was jerking it off target. I can shoot it accurately now in DA, but have to "stage" the trigger and verify the sight picture before pulling it all the way back. YMMV. I do think, however, that a Colt trigger is probably has a smoother feel at least from the factory than an S&W, although the difference to me is slight.
The Rugers I've tried stack to about the middle of the stroke, and then the pull weight falls until the trigger breaks. I don't have one and haven't practiced with them all that much, but I've found that my double action accuracy with a Ruger is much worse than it was with a Colt before I learned to shoot it well. Someone who practices enough with a Ruger could probably get use to it. The trigger on them is at least better than it is on my dad's 9mm S&W Sigma