I wouldn't pick one, all the freed nations of Eastern Europe have experienced difficulty in transitioning to liberal democracy in their own ways. Each has its own history to draw on, for good or ill. The trouble with Germany is how it has historically dealt with its struggle.
I was recently talking to a Hungarian friend about how they were taught about the origins of WW1 in school, and they were explaining the emphasis on the settlement and the Nationalist take on the breakup of the Empire.
I didn't realise it was two thirds of their territory.
I wouldn't pick one, all the freed nations of Eastern Europe have experienced difficulty in transitioning to liberal democracy in their own ways. Each has its own history to draw on, for good or ill. The trouble with Germany is how it has historically dealt with its struggle.