How might "West Poland" and "East Poland" be divided after WWII?

Imagine for a moment a world where the Soviets do much worse in WWII and the Western Allies do much better, resulting in a Cold War with the Iron Curtain moved substantially further east. Most of prewar Germany (with obvious exceptions including East Prussia) are occupied by the Americans and British, and Poland ends being liberated by the Soviets in the east and the Americans and British in the west. While the victors initially plan on integrating their Polish occupation zones into one state, the postwar breakdown in relations between the two factions leads to this not being realized, with a West Poland and East Poland coming into being.

Perhaps this scenario is far-fetched. I'll concede that. But in a world where the whole of Poland's borders look roughly similar to OTL post-1945 (i.e. the Soviets annexing Kresy but Poland being compensated with German territory in Silesia and Pomerania regions), what would be a remotely logical way to divide the country such that the two halves could be viable states?
 
East Poland is Lithuania and Belarus

I'm this case Poland gets Danzig and more than likely either east Prussia or east Prussia is the only thing left of Prussia and turns into a vanguard for thr Baltic states that later would be more Baltic than German
 
The most obvious and pretty much natural answer would be Vistula line. Only... in such case West Poland takes majority of Polish and previosuly German territories (Silesia and Pomerania) with much stronger industry and resources. Also most of Polish historical, political, cultural, scientific and spiritual centers would remain in the West - Warsaw, Cracow, Poznań, Częstochowa. What remains in the east? Lublin and Białystok as main cities, possibly pieces of Warsaw and Cracow with most important parts being in the west, like royal castles, universities etc. Frankly, East Poland would be a rump, to make it a vialable state the Soviets would need to compensate it at least with Lwów/Lvov/Lviv. And even then it would be smaller than weaker. OTOH East Germany WAS smaller and weaker than West Germany.
Another possibility is to pretty much cut Poland in half: along the Vistula in the north from Gdańsk to Toruń and then to the south along the E75 road, with Warsaw in the East Poland. But I can see problems with drawing such a border without natural or historical borders as basis. IOTL the inner German border, or rather a line between Western and Soviet occupation zones was based on historical borders of old German provinces. ITTL dividing Poland along pre-war Voivodship borders would make most of pre-war Polish territories become part of the East Poland, with previously German Silesia and Pomerania as compensation. That still gices West Poland more industry (Silesia), but OTOH East Poland gets Warsaw, a true heart of Poland and majority of Polish population.
 
I think Austria becomes red instead as a concession/disparity of influence. Either that you get North and South Norway and a North Sea naval enclave a la Kaliningrad.

Remember, Russia’s overwhelming national goal for centuries has been a reliable warm water port, somewhere, anywhere.
 

yourworstnightmare

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East Poland had more Belarussian, Ukrainian and Lithuanian popluation, so USSR just annexing it and splitting it among the Soviet Republics is waht would happen (as OTL).
 
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