RE: .41 Magnum - SW VS Ruger
Ruger is generally regarded as one of the strongest. That's a reason why many loading manuals have "Ruger only" loads. Being another fan of the .41 mag I can say it's a great cartridge, I have two, both Rugers. Another i'd definately consider is the Fredom Arms, the king of kings of the single action revolvers.
Something to think about is if you want single action or double action?