I'd pass over that "improved trigger" Smith, just because it almost always means it's either used (which I prefer not to buy) or prohibitively expensive (nobody supes up a brand new smith and sells it for a reasonable price).
Ah, but you're evading one of my conditions. What happens if the Ruger and S&W are priced close to the same? It appears to me that this could be the case. Ruger need to recoupe the cost of designing, development and tooling - where S&W and Taurus don't.
Also what happens if the Ruger trigger pull isn't as "inproved" as it's thought to be?
The Old Fuuf is playing adcocate, because that's what market studies are all about.