If you plan to cover all the bases mentioned in your post with a single revolver, a 3" or 4" S&W 629 would be at the top of my list.
A Super RedHawk 454 has some serious down sides. Barrel Lengths 2.5" is way short for accuracy. It is made for Bear Get Off Me use. In a 7-1/2" it is very large, and heavy.
You need to prioritize your needs, and purchase atleast 3 Revolvers to meet your needs.
You need a 22 for Plinking, and practice. Cheap to shoot all you want. And just plan fun to shoot. Semi Auto or Revolver
Next would be a 357 Magnum. You can practice with 38 Special's and Carry 357 Magnum for 2 legged vermin. GP100 and 686 come in barrel lengths of 2-1/2", 3" and 4" between them. A 65, 66, 19, 13, Security Six, etc will all work also.
For Bear Country 44 Magnum, 45 Colt in a Ruger, 454, or 480 Ruger. A short barrel to beat a bear off you. A long barrel to hunt with.
I hunt with my Big Boy. I have a Ruger Super RedHawk in 480 Ruger with 9" Barrel. The 480 Ruger is a Reloaders Revolver, but in my opinion as good as it gets for a big bore. All the power you will ever need, with tolerable recoil.
If you enjoy shooting, you need a battery of handguns, not just one. If you took Bear out of the requirements, and got a reloader you could live with a 357 Revolver. You can reload 38 Special for around 15 Cents a shot with lead bullets.
Bob