what if the italians hadn't surrendered seperately to the allies and had fought with the germans until the bitter end, do the germans still end up occupying italy? do the allies advance faster in italy? does the allied advance get slowed because there would've been less partisan resistance if it was the facist italians and not the germans still in power in italy?

I suspect Italy would still been occupied by Germany on the Grounds the Italian army would had been no match for the Allies. And any way Hitler was trying to defend everything which resulted in more of a drain on the Reich.

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Man of the Year 1942

Regards, Richard

if hitler had stayed close to home, his defeat would have been harder, but he had to expand so much

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"Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning." -Winston Churchill

After the fall of Tunis, German forces were already in Italy, by the fall of Sicily there were about 16 Divisions, many of excellent quality.

So the Allies already diverted these from the East. Do the Allies even invade?

I fail to see where the Italian Partisans helped the Allied efforts except to return POW & Evadees.

Given the low quality of combat shown by the Italians on Sicily, they would have continued to be an encumbrence to the German forces and maybe provided the Allies a "soft spot" to concentrate on in any defensive line. I would rate their value at 2-3 Divisions, maybe.
Plus Tito would have the easier Italians in Yugoslavia.
Plus Southern France would have a mainly Italian Defense Force, maybe a better target?
And the Italian Army in Russia would have provided a further drain on manpower & morale.

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Whe're off to see the Wizard, the wonderful wizard of OZ - 6 Australian Infantry Div, Bardia January 1941

"I fail to see where the Italian Partisans helped the Allied efforts except to return POW & Evadees."

Can only suggest considerable further reading on the facts of the war in Italy relating to the part of the Italians, and the Italian Civil War 1943-1945. Gen. Kesselring reported at any one time at least 6 German Divisions were engaged with the Partisans, not including those of the SS or the RSI. The majority of major towns in northern Italy were walk-ins for the advancing Allies because they had already been taken by the Partisans and urban Resistance units. In ’45 the Partisans took on Tito’s forces and stopped them taking Trieste, before Freyberg arrived. They also held De Gaulle’s Free French around Aosta and prevented the French land grab till the Italian American lobby in America persuaded Truman to make De Gaulle an offer he couldn’t refuse.

No.9