Who do you think was the more successful dictator?

Stalin, easily. He got a lot of shit done, and really moved Russia forward by light- years. All Hitler did was take em out of recession (nothing special, since he pretty much confiscated all the Jews' wealth). Also Stalin had much better control of press and what information got out etc. That's the reason he was able to join forces with Briton and America, since everybody was so focused on Hitler's atrocities, and paid no mind to Russia. That and of course, he didn't get ahead of himself like Hitler did...

Hitler. He was a fairly successful leader despite his murderous ways. Stalin was both a murderer and a bad leader, but killed way more.