I say Stalin.  You can understand Germany's anger in WW2 because of the hate they got in WW1. WW1 was a war where everyone screwed up. Germany was not a bad guy in WW1, if anything the bad guys we're Serbia, Russia, and the U.S. Germany had no reason to target Jews, but anger towards the rest of the world can be understood.

Totalitarian Communism started by Russia has led to way more deaths and unneccessary wars than Facism has.

Stalin regime: Even if you are a loyal member to the USSR you still have a chance that you will be killed

Hitler's Regime: If you play along chances are you won't die.

So if you are a citizen that falls under the category of acceptable, you'd be better of in Germany.

If you are considered unacceptable, you are screwed in either nation.