I got my HX's yesterday and also picked up a pair of AirPods Max. I have to say, it is going to be a tough decision. Overall the APM are better I think. They have the better ANC and transparency and better connectivity. Sound quality between the two is different, but both are good. Comfort is tricky. The APM are heavy and create some cabin pressure (though I have been acclimating), but the ear cups are pretty comfy. The HX's are lighter (and you feel it) and are exceptionally comfortable, but the round ear cups do not complete surround my ear so they end on my ear in spots. It is something you get used to, but still not as nice as cups that completely surround the ear. Obviously have a case and nearly double the battery life is a big win for the HX. On the other hand seamless connectivity is a big win for the APM. The HX has a longer warranty (3 years).
Going to give it another day or two before I decide. I am leaning toward the APM, but the cost (~$700 with case and AppleCare) is really not ideal and I am a bit worried about long use comfort.