Oh where to begin.
"Specifically what did Stalin do that led to defeating fascism? Was it his “Not a step back” policy? He controlled a country with more than double the population, and so able to produce much more."
Do people not realize that labor is only one factor of production? The population was not "more than double". It was a little less than double. 170 million vs 90 million. And for those who claim the population was higher, remember Stalin issued a new census in 1939 because the outcome of the 1937 one (162 million) was thought to be too low.
According to people here, China and India should have blown away America in terms of economic might a long time ago, that is if we go by population alone. German was considerably more developed economically than Russia and had been since their own industrialization drive in the mid 1800s. The Soviet had just endured a painful and destructive civil war in the 1920s. To go from that to an industrial power in less than 2 decades is Meiji Restoration level astonishing."
The most productive raw material producing areas of the Soviet Union had been seized in the early stages of the war (which is why the Germans invaded to begin with), therefore during most of this period production levels between the two countries weren't even close. What is remarkable, and the Soviet leadership deserves credit, is how they were able to cope with these losses, and reconstitute production at a high level once these areas were liberated in 1944. I'd like to see any production statistics you have whatsoever, world economic survey, I don't care, which show that the Soviets were somehow producing way more than Germany.
Germany was producing more than 30 million tons of steel in 1942-1943. 35 million when you included occupied territory production. The USSR was producing 8.5 million tons of steel during that same time period. Largely because again, their most productive areas were controlled by the Germans.
http://www.bbc.co.uk/history/worldwars/wwtwo/soviet_german_war_01.shtml
"His total military was also double that of Germany"
Not when the invasion began. The Germans outnumbered the Soviet military during the initial. http://www.strom.clemson.edu/publications/sg-war41-45.pdf
The fact that the Soviets were able to mobilize and train a huge number of reservists points to 1-yet another reason why the leadership should be given credit for defeating fascism and 2-the brutality and barbarity of the German occupiers which incensed the occupied population, facilitating mobilization.
"Considering that he lost about three times as many troops for every German on his front, his army was incredibly disorganized and lacking competent leadership (his own fault)."
No, it points to the barbarity of the German army in the occupied territories. They murdered and executed massive numbers of Soviets on sight. Huge numbers of POWs were butchered by the Germans. Those that didn't get executed died in captivity as slaves or in poor conditions in POW camps in miserable winter weather. To point to that and say it was the Soviets fault is disgusting, and absolves the barbarism of the Hitlerites, which is your goal anyway.
"And if Hitler had not been incredibly stubborn and insane by 1942-3 then an idiot could have taken Moscow just as you said"
Hitler's insanity preceded 1942. Unless you're saying he should have nixed the fight to the death order and retreated like Napoleon. But his entire strategy was idiotic from the get go. He is a highly overrated politician, military strategist, orator, everything. The only thing he was "good" at was killing people industrial-style.
."Hitler however brought his country out of the worst depression ever into a dominant military and scientific power in less than ten years."
Germany was a dominant scientific and industrial power in particular, long before Hitler.
The myth that Hitler spectacularly improved the economy is a particularly pernicious one. He did nothing of the sort. Average standard of living didn't increase by very much, in fact wages declined significantly despite the decline in unemployment. Most of the reduction in unemployment came from putting people in the armaments industry. Germany repeatedly suffered from foreign reserve and currency problems - a reason behind their goal for "self-sufficiency", which they did not achieve.
"How can you compare that to the 3 five year plans, which did industrialize the country, but over a longer time period and less considering they weren't as hard hit by the depression."
They weren't hit by the depression at all, in fact they were thriving. Why? Because of economic planning. They weren't subject to the whims of the market. So yeah I'd say that compares very favorably. You're pretending like Germany wasn't already an industrialized power before 1933. Germany was one of the leading industrial powers as early as 1900. So engaging in Keynesian employment reduction programs is not very impressive, especially when considering these policies created problems of inflation and Germany's war-economy led to an import/foreign reserve crisis.
"I suppose you could argue there was a elaborate and ingenious plan by Stalin to let Germany invade and eliminate the Ukrainians, and think that they were all incompetent, all the while preparing for a massive come back. Then at the last moment before Leningrad, Stalingrad, and Moscow were taken, surprise, now we can beat you."
This sounds like gibberish to me. I don't even know what you're talking about here. Many Ukrainians were collaborators. Lots of these collaborators wrote history books that were used by Conquest and his ilk. It's not as if the Nazi invasion did anything to hurt Ukrainian nationalism. In fact most Ukrainian nationalists welcomed it.
"Although as it has been stated before, both leaders changed dramatically over the course of their time in power. Hitler before 1942 was in my opinion better than Stalin ever was (as a leader...they both committed various atrocities, Churchill is really only loved by warmongering conservatives), but after that he only declined and then yes I'd consider Stalin a better leader."
Because of public works projects? Because he was rearming when the rest of Europe was tired of war? Hitler's "success" by and large had been pre-staged by the Weimar regime, which convinced the Allies to get of any real punishment for WWI, withdraw from the Ruhr, etc and secured a sweetheart deal with the Americans on reparations and loans.
"British/Americans purposely waited to build forces and keep Soviets weak; they could have sent waves and waves of troops at the Germans with no regard for life like the Soviets did, but letting the Soviet Union fight the brunt of the war was a decision made by the British and Americans. Its like any strategy game, you let your enemies beat the crap out of each other before you get involved."
Uh...the Soviets did not engage in "human wave" tactics. There is no evidence of that whatsoever. Stalin explicitly forbade column formations. See Directive No. 306.
" It is just as likely that your information is very biased."
Just as likely? I've provided sources for much of my information. You've provided nothing but the usual unsubstantiated nonsense.