Guns which ones...
These categories overlap. Have to break it down to Handguns and Long Guns.
Handguns:
1.) Plinking/Fun - Plinking: Tossup between my Taurus 92 with 22 conversion, and my K22 Revolver. Fun: S&W 686, although I just got a Ruger P90 I have yet to shoot.
2) Utility/Woods - S&W 686
3) Home Defense/SHTF - S&W 686, Ruger P90, Taurus 92, or Taurus 100. (SHTF: It depends on what I can get ammo wise.)
4) Conceal Carry - Don't have it in my state. I would think my Taurus 92, or Ruger P90, and just to mix it up a little, my 686 on occasion.
5) One you can't live with out - S&W 686
Long Guns:
1.) Plinking/Fun - Mossberg Plinkster, and Marlin 39A (Just plain fun)
2.) Utility/Woods - Remington 870 Shotgun With a Knoxx folding Copstock or Marlin 1894 in .357 to match my S&W 686
3.) Home Defense/SHTF - Home Defense: Remington 870. SHTF: Galil (Israeli AK-47 in .223), WASR-10 (AK in 7.62x39), or one of my many Mosin Nagant's (7.62x54r).
4.) Can't Live without - My Marlin 60 (Present from my parents), or British Lee-Enfield 303 (Inherited from my Grandpa).