dougk: unless you intend to get that revolver wet, covered in gore or all sweated up, and not clean it on a frequent basis, then go stainless. There is little difference between the two metals except in maintianing the finish on a blue steel revolver. Stainless will not rust up as fast as blued steel will and requires less attention to the outside finish. Internally however there is no difference in the functioning between the two metals, as I understand. That does not excuse a lack of or poor maintenance for a revolver as any revolver will eventually fail if not properly maintained or allowed to get too dirty.
Also, the 357 magnum is well suited for for all the purposes listed, with the possible exception of hunting large hogs where you might want the 44. The 357, with heavy loads, should satisfy all the intended needs you listed. Just my opinion. Mikey.