I used to recommend the MORryde/Exogate but in the context of recent experience I have to add footnotes:
1. for onroad use only
2. if used offroad, provide means of protecting spare from contact with terrain during high-departure-angle maneuvers - essentially a "spare tire skid plate".
If you drop a spare onto a ledge with a tailgate reinforcement kit, it will transfer a significant portion of the energy to the tub. The Flux option may be better since the hinges aren't tied together on the gate and will allow the gate itself to twist and take most of the damage, but if you pair it with tailgate armor, you probably want to make sure you have tub armor as well.
I will be running a naked tailgate in all situations except where it's absolutely necessary, which is pretty much just when I wheel with my kids (since I can't strap it to the floor with a back seat installed).