Maximus-3
I've only had experience with the stock and the Maximus-3 carriers but would say that the Maximus unit is as stout as anything I've seen on the trails. Its hinges do attach to the same subframe structure as the stock hinges (which are retained) but the tire mounts to a heavy gauge tubular assembly that holds the wheel/tire away from the tailgate and the whole thing opens with the tailgate. As mentioned previously in this thread, you can add modules for mounting rotopax, antennas, shovels, hi-lift, etc. It will hold up to a 40" tire. If the backspacing of your wheel is 4.5 or less, let them know when you order as they will send you a tire mount bracket with the correct range for such a wheel (at least that's what I did a couple years ago when I ordered mine).
As a demonstration of the strength of the carrier, I was rear-ended by a car a couple of months ago. The car hood ornament area hit the sidewall of my tire and the hood was pushed back to the point that the other driver could not see over it to drive. I had a scuff mark on the tire and no damage at all to the carrier or tailgate.
For us 10A/X/HR folks, it is kind of neat to deal with Maximus-3 because they specialize in making tire carriers and winch plates/front bumper accessories for these vehicles. Their winch plate is somewhat less expensive than the Mopar unit and can be used with either the off-center (Warn 9.5 CtI-S) or centered (8-12 K Zeon Platinum) winches.