The Samurai and Wranglers are poor choices in EOTWAWKI situations. You need to be able to be mobile, and neither vehicles have enough carrying capacity, or the ability to sleep IN the rig (preferably with your gear still inside it). Hard tops are THE way to fly for what you need. Forget soft tops: they provide less security, protection from the elements, and require replacement.
Where you're located, and where you want to go are going to be HUGE factors. Trackers get better MPG than the Samurai, and have more power thanks to FI. Yes, FI is more "complicated" than carb, but it's also FAR more reliable. The Samruai carb is ANYTHING BUT simple. It's vacuum and computer controlled. The suspension is far more modern (comfort, and speed), breaks and cargo space are superior, they're about 1/2 the price of a Samurai and probably many fewer miles on them (since they're newer). It's the best of both worlds really - it benefits from modern engineering, but they're still quite simple to work on & repair.
My choice has been the 4-door with some modifications. My 29" MT tires will get me anywhere but the toughest of trails. If I add a locker, I could probably navigate most of the Rubicon with a little body damage. 29" locked is like 31" open. 29" tires will keep the MPG advantage (expect 20-22 MPG) - 31" won't (17 MPG). 31" tires are also THE SUCK going uphill, or with the kind of gear (weight) you'll be carrying in a SHTF situation.
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The Cherokee will have a capacity & power advantage. And, it's RANGE will be similar (larger fuel tank), but this can be augmented with jerry cans (So can the Cherokee, but you'll benefit from 20-40% better MPG out of those same gallons).
If it were me, I'd also look into the Toyota mini truck (with camper shell), or 4-runner. They're also well priced, common and quite capable wheelers. I still think the ultimate setup is a van - but hey - that's just me.
And, you can go to Utah all you want. I think there's too many local survivalists with high powered weapons, and I doubt they have any reservations about shooting first, and asking questions later.