I've little experience with the Redhawk, plenty with the Blackhawk/Super Blackhawk and Model 29 Smith.
The Ruger is one tough six shooter in the Blackhawk models. But, so is the Smith Model 29. I have an early Model 29 that gave me a lot of problems. On contacting the factory, I sent it back and had the endurance package installed, which is incorporated into all new guns.
But, as to ruggedness, any .44 Magnum is built to handle the cartridge, and repeatedly. As to abuse, no maker can forsee that. Plug the muzzle with snow or mud and touch off a round, and you've got trouble. But, take reasonable care of your revolver and practically any modern six shooter will fill the bill. This is not to say you will need to baby your gun. But, take reasonable care of it, and check it over after some reasonable period (I make 10,000 rounds fired a milestone) for wear or battering. If you are going to be in damp or wet conditions for extended periods, then stainless is the way to go. My hunting is limited to day trips, so blued guns have never been a problem for me.