Honestly, Half of these wouldn't work well. Considering, How many people most likely have the Exact same plan. You'd have hundreds of idiots going to the nearest gunstore/whatever and heading out to the wild or what have you.
The difference however, Most would likely die as they wouldn't know how to live off the land. Or even know how to fire a gun.. Unless you're know-how in that kinda thing.
Even then, Holding down an area is bad as well. Zombies can out wait you, you have to get food or water sometime.