Tough one.
1. Ruger new model super blackhawk, 44 magnum, 4 5/8" barrel. Fitted with a fluted cylinder. Blued, with a stainless grip frame. Custom front sight with pinned blade so it can be exchanged.
This would be a compromise from the flattop 44 special I currently have, but 44 special isn't legal for some big game hunting.
However, in a simply rugged sourdough pancake holster IWB, either is comfortable to conceal carry.
2. Remington 870 wingmaster 12 gauge. With three barrels, bird barrel, rifled barrel for slugs, riot barrel.
3. Marlin 39a that's been to Turnbull for case coloring and tuning. This was the hardest choice because I really was considering a centerfire for big game. But frankly there ain't anything as fun as shooting a 22 levergun.
If it was to be limited to the guns I have currently,
Ruger new model flat top 44 special 4 5/8, blued with stainless grip frame.
Remington 870 12 express with bird barrel and riot barrel.
Winchester 94 30-30.