1. A war in which Stalin has armies ending up on the Elbe becomes a very difficult one in which you can avoid an East-West division. The Soviets will not want to leave their zone(s) until a) they are fully confident that whatever succeeds the Occupation is zero-zip-nada threat to the Rodina, and b) they've sucked every bit of resource out of it they can by way of compensation for wartime losses.
It's not impossible, perhaps. Maybe if Churchill and Roosevelt reach an early consensus (which they failed to do in OTL) on a) a fragmented Germany, and b) what the boundaries of the fragmentation are, Stalin might go along with it to some degree. But even then, the Cold War is still going to happen, and that will be a powerful force driving for political cooperation and structure between the non-Soviet occupied German states.
2. Now, if the war turns out with Soviet armies finishing up somewhere in Central Poland rather than Central Germany, more possibilities open up here. That's not impossible, of course - kill off Hitler in '43, with Manstein playing for more time in the East until the collapse, or kill off Stalin around that time, with an internecine power struggle in Moscow that stalls the Soviet war effort sufficiently, to give a couple of more obvious possibilties. At that point, the US and Britain have more leverage in many respects, perhaps even enough to disallow a formal Soviet occupation zone (or at least a major one) of anything beyond East Prussia.
3. BTW, one other scenario not presented in the poll, but which ought to be considered, is the
Sumner Welles plan for a tripartite division of Germany, published in LIFE magazine in July, 1944: