I'd chose the A4 world over The Man in the High Castle anytime. At least in the A4 world, democracy and human rights are promoted. Of course, with the specter of "be good or else."
Actually it's closer to "don't be evil murderous bastards", bit the point stands.
The A4 is like the One Earth Regime from Injustice seem like a model of democracy with compassionate qualities while tolerated to be to prejudice the "Nazis"
Joker after what they did to Europe Lois and the unborn child for turning Superman turning into the vile man he is now in grimdark alt-WW2 and never ever for "the New Homeland" to be reunite maintaining law and order via strict and harsh rules.
While the One Earth Regime is cool and fiction that is never taken too seriously while the A4
Nazi 2.0 in democracy under Calbear Thought having the unfair treatment toward non-A4 members over "no-allowed going to space" only A4 property you weakling we are Anglo supremacy looking like nanny own the planet and it is hypocritical for happy-go-lucky using orbital bombardment on Stettin as form of genocide toward the "Nazis" as the crime against humanity by the OTL's perspective even the "Nazis" wanted to end the occupation to having a redemption arc, making them too unsympathetic to my own taste.
Looks the AANW is horrific well-written mostly WW2; it is simply the post-war timeline that is the main offender.
The post-war timeline is SUPPOSED to be at least somewhat uncomfortable. There were, IMO, two basic paths I could have followed when I agreed to do the postscripts (adter warning one and all that they would not be anywhere close to the same degree of researched and structuted as the mail T/L).
One was "Ya. we won! Free snacks $0.25 hotdogs for all!" world, where with the Nazi's very much tossed onto the ash heap of History, and Soviet Union removed from the fomenting of revolution business Earth has a Star Trek
-esque Golden Age, or something close to it. That seemed just plain old wrong. The extended war was a nightmare to top nightmares, and even the Good Guys had "dome things that were best not talked about". Turning that world into a mix of Leave it to Beaver
and early Beach Boys songs simply didn't work for me (I actually wrote about five years of that version before I hot "don't save" and started over).
Instead I went with the other reasonable version (the third version, where it turns into a free for all with NBC weapons used by everyone from the local dogcatcher on up simply didn't appeal to me) one where things are just not quite the same as OTL. The WAllies are still pretty much the same, but the extra years of war, the way that Japan was defeated, and the experiences of far too many people, had created a more hardened version of OTL. ATL, the A4 has taken "Never Again" to be their axiom and they are not, unfortunately, unwilling to break more than a few eggs to make it happen.
Germany was seen as the root of all the problems in Europe over the last century, having either started or cheerleaded the last four serious European Wars, starting in 1866. How do you prevent that from happening again? You prevent Germany from recoalescing, recreate the smaller states/principalities that existed before the Prussian Unification efforts, and you also cut up Prussia, because if Germany was the problem that Prussia was GERMANY'S problem. You wind up with a group of small states, none of the are really tiny, mostly they are the population of The Republic of Ireland, you allow the new states to reindustrialize, giving them a chance to prosper long term. You, however, keep an occupation force in place, learning (incorrectly?) from what happened after Versailles (it is also worth considering that, IOTL, The Soviets effectively maintained a full blown Occupation Force in the DDR until the Wall Fell, with the DDR's political leadership being subject to approval by the USSR, so the A4 approach is not really that far out of line, it is simply more open and spelled out). The result is a group of countries that can be as successful as Belgium or the Netherlands from OTL over the medium to long term.
The A4 also decided that it had learned all it needed to about countries that broke international treaties. You let someone break a treaty with you and they simply won't stop, and will keep it up, keep trying to do more and more, until you wind up having to participate in the killing of another couple hundred million people. Not happening,. Same goes for Genocide; gotta nip that in the bud straight out of the gate, no exceptions, Having been on the delivery side of nuclear attacks, you decide that you have no interest in being on the receiving side. From there you look at the danger of attacks from orbit, not acceptable. So you say no one can be in a position to try it. You can do all the science you want, we will put your research platforms up in orbit for less that it will cost you to do it yourself (once we are sure that they are research platforms and not weapons systems). Yes, we are being unfair, see not about killing 200,000,000 people.
The A4 is about the the best case for a realistic post major WMD exchange world where the democracies win. It isn't ideal, in fact in a lot of ways it rather sucks, even for citizens of the A4, who pay through the nose for taxes to support a military loaded to the gills with weapons everyone and the cousin Bob prays never get used.
The A4 are pretty much self righteous jerks, but they also don't go around killing people enmasse on an ongoing basis. Stettin was terrible. Compare it to some of the things that have happened IOTL,
The A4 ATL is far from perfect, even far from really good. It is, IMO, reasonable possible.