Oldies but Goodies
Assuming dual use (hunting and protection) my choices would be:
Rifle: Marlin 336 30-30 (pre-safety)
Handgun: 1911
Shotgun: Winchester 1897 (28" field gun)
As important as the weapon, is the flexibility and availability of the ammunition. The Marlin is time-tested and dependable for the hunting of most mammals in the lower 50, with the right load / distance, presents a formidable defensive weapon, and is incredibly durable (forged steal receiver, etc. - carry a screwdriver and some basic cleaning supplies and you are good on maintenance for the next 60 years). The .45 round is obviously a proven defensive round, but up close, within arrow range, it would work for medium sized game as well. The Winchester 1897 is an established field gun (over 100 years now), and if you haven't heard of slam-fire or "trench broom" Google it.
I own the 3 guns listed. I have shot, and in some cases own/owned AR, MP5, Glock, various other H&K, Sig, Rem 700, Win 70, and many more. They are many wonderful tools out there... but for this scenario, I would choose the 3 I listed above.