I have had three .41 mags, over the years, and it is my favorite caliber. A 4" Blue model 57, a 7.5" model 657, and recently acquired a 4.625" OM Blackhawk. Of the three, the blue 57 had the best trigger, but the 3 screw is as nice, as the 57 in SA mode. Though I have owned several N-Frame S&W's, over the years, I am NOT a big fan of S&W, and have only owned two Ruger revolvers, EVER, so I can't compare apples to apples. My other Ruger wheelgun was an older Security Six, back in the late 70's.
In comparison, between it (comparing apples to pears to oranges), my newly acquired OM Blackhawk, a friend's Super Redhawk, and the various S&W N-Frame revolvers, which I have owned, over the years, my best opinion is that, while they are nothing to complain about, the Ruger DA's do not have the slick action, or crisp trigger, of the N-Frame S&W's, out of the box, and I am quite impressed with the action, and trigger, on the OM Blackhawk. However, as for design and ruggedness, HANDS DOWN, Ruger has it, all over the Smith's.
Were I in your position, I would opt for the Redhawk, get an action job on it, and start looking for a 3-Screw, .41 mag. I think there is no better wheelgun ever made, than the 3-screw Ruger. It is, without a doubt, my favorite shooter, other than my Colt's. But they are all old, and have been through the Colt Custom shop, to be EXACTLY what I want.
"If ever a time should come, when vain and aspiring men shall possess the highest seats in Government, our country will stand in need of its experienced patriots to prevent its ruin."
Samuel Adams, Brewer/Patriot