Who Would Win?

Depends on the events.

Nuclear fallout?

No one.

If it was any other event. I would say the side that can be more self sufficient would. There are really many factors overall governing area, climate, etc.

But if you know how to hunt, fish, scavenge, garden, or any other wilderness training you will likely have better odds compared to Joe/Jane Normal or anyone that thinks camping is fine with provided materials to camp with(food, fuel, fire, etc.)

You on a good track already if you know how to properly filter/boil water to make it drinkable.

OK, perhaps there's some deeper symbolism that I'm missing and I'm taking it too literally, but yeah, I've got canned food and bottled water in my shelter, vehicles, and go bag.

Obviously, the "Conservatives" solution is more sustainable and better for long term survival, but you need something for the short term until you get that garden producing.

Having canned food is one thing,,, knowing how to do it is another... Those that know how to do things will be better off than those who depend on others

Church.

Check the lyrics to Hank's "A Country Boy Can Survive" - pretty much how I was raised - you don't forget those skills.

No need to check the lyrics... It's the national anthem where I'm from LOL

Like in Texas when there's 2.34" of snow that sticks around for a couple of days and the tp stocks horded in 2020 won't stop people from dying of thirst who have no idea what that white stuff on the window sill is?