Little Ray:
"Without the delay to Barbarossa and their drain on German resources, the German might have won!" I have read historians make the case that because of 1941 wet spring weather, swollen rivers, muddy roads, etc., Hitler could not have launched Barbarossa before late June without encountering the same problems he had that fall.
The real problem was that in 1941 the German Army was fit for good-weather summer-time fighting only.
Compare the Germans' premier tank at that time, the Panzer Mark 4, to the Soviet T-34: 
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It wasn’t that version of the Mk4 in use at the time of Barbarossa. It was the short barreled infantry gun version.
At the time of Barbarossa the German main battle tank was the Mk3 with a 37mm or 50mm main gun. That was inadequate for KVs and T-34s.
If the Germans had the long barrel PAK version of the Mk4 things would had gone much better!