The main criticism of the infamous Treaty of Versailles seems to be that it was harsh enough on Germany to greatly anger them, but not harsh enough to prevent them from becoming a power again. This half of my WI asks what would happen if, for whatever reason Woodrow Wilson was not listened to as much and the conference went the direction of a harsher peace, completely beating Germany down.
As for what terms might be realistic, I will leave that to your own discretion, but I'd imagine that it wouldn't out of the realm of possibility that Poland would receive all of East Prussia and have outright control of Danzig. France might also claim larger amounts of German territory than Alsace-Lorraine, certainly outright annexing the Saar instead of putting it under League of Nations control as in OTL. Poland might also receive the eastern part of Germany as well, creating a Germany that bears a similar appearance to it's modern borders, maybe a little smaller. Hell, I've heard from some sources that returning to the old German Confederation was raised at some point, although that seems like an outside chance even under ideal conditions.
But what do you folks think?