Originally Posted by CPMaverick

Alitalia earn rates (scroll to the bottom for non-VA numbers):
https://experience.velocityfrequentf...lines/alitalia

Delta earn rates (keep in mind VA vs DL flight number charts):
https://experience.velocityfrequentf...elta-air-lines

So for your potential itineraries here are the minimum SC:
YYZ-LAS in C+
180 SC on DL routing through ATL, 0 sectors

YYZ-FCO in J (assuming direct not really sure)
240 SC, 0 sectors

YYZ-LAX-BNE in J (assuming VA fight numbers)
440 SC, 4 sectors

So you'd get 860 SC and 4 sectors, which is enough to qualify for VA Gold status (which is 500 SC and 4 sectors). With some creative routing, you may be able to get VA Platinum, which requires 1000 SC and 8 sectors. Probably the biggest benefit of VA Plat is the 'soft landing', which guarantees VA Gold the next year even if you don't fly at all...

The big question is does VA code-share on DL YYZ-BNE, I don't really know.