raises hand
About fighting harder - Max Hastings in his book
Inferno opines that the totalarian regimes had much better infantry than the democracies - mainly due to coercion, ie if you don't press the attack you the powers that be shot you, so you have a better chance of surviving going forward. The numbers that both the Germans and the Soviets shot for cowardness is amazing. As a general rule the democracy's infantry would not press an attack in the face of stiff opposition. They would go to ground and call in arty or TAC air. Of course were are exceptions to this (Marines, Rangers etc)
Micheal Jones in his book
Total War, quotes a young Russian machine gunner about fighting hard. Paraphrasing he said, What choice did I have - If I go back they will shot me, if I surrender the Germans will kill me, I have a better chance of surviving by fighting.
Both are excellent books by the way, I highly recommend both
SU, on the question if Stalin could have won the war on his own, I think you are discounting the effect the Lend-Lease had on Stalin ability to wage war. I've read some people I respect that opine that without the Studebaker truck (6x6) Stalin would not have been able to supply his armies and thereby would have lost. There is no question however that most of the fighting and dying was done on the Steppes of the Ukraine and Russia. The German order of battle in June 1944 shows that there were 59 German divisions in the France and the Low Countries and 29 in Italy with 163 on the Eastern Front and a further 46 scattered around the German "Empire".
Just an anecdote my brother told me about the intensity of the fighting between the two fronts. When he was assigned to the 3rd ID in the mid '80's they were teamed up with the German 7th Panzer as a sister Division. He went to some activities with veterans of the 7th. He said that the German Vets told him they considered fighting the Americans a "vacation" after fighting in Russia.
Oh and I agree on Point Du Hoc (see avatar) and the Cemetery at Coleville. I think everyone should visit both if they ever have a chance! I was also impressed with the AMC at Cambridge.