I like the Nato/Wavians. Easier to rig a lock onto. No threads to muck up. Plastic in the sun degrades. I think a lot of the scepter buzz is internet fueled irrational exuberance.
Well, you're wrong, and badly. The milspec MFCs (which the scepter jugs are) stand up to a tremendous amount of use and abuse. We used them every wrong way you could imagine in the Marines in extreme conditions at both ends of the thermometer without design failures that I'm aware of. The only failures I ever saw were human induced, when some idiot got hold of a cap wrench and grossly overtightened them. Then the caps crack. Or the grit that got in the designed gasket-less seal makes permanent damage to the sealing lip / groove, because someone failed to make sure the mating surfaces were clean.
Those plastic scepter NATO-spec jugs - MFCs and MWCs have been in use all over the world for at least 30yrs. And that's why they became favored in the off-road crowd, long before 'Overlanding' became a fad.
They just work. And they are thick enough that they work for a very long time. And you have to misuse them to make them balloon. Fill them as full as you can make them.
And the guys (still) talking about illegally importing them in violation of US regs, good luck to you, seriously. We need as many good cans as we can get down here, since our own government is so determinedly stupid. But the 'import'(smuggling) prices get ludicrous, even before they are converted into Canadian pesos.
And that's all part of why the scepter 'civilian' jugs are taking off down here. $25 - HALF the price - for a 'civilian' 20L jug that is far thicker than any old Blitz or other similar plastic jug ever was, even though the 'civilian' version is only 2/3 as thick as a mil-spec MFC.
Same goes for the 'water' versions (which are identical in the 'civilian' version, just different colors and internal spout), which sell for $19, vice things like LCI's 20L MWC, which go for about $25ea last time I looked.
The only problem with the 'civilian' scepters is that they are a different shape, fatter / wider bottom and don't fit in NATO jerry can holders.