1, varieties and styles: Italy has many famous varieties of red wine, such as Sangiovese, Nebbiolo, Amaretto, etc. Each variety has its own unique flavor and characteristics. Argentina, on the other hand, produces some famous red wines, but on the whole, its red wine varieties and styles are relatively few.

2. Quality and taste: Italian red wines are usually of high quality, with a rich, complex and elegant taste, and a good sense of balance and hierarchy. The taste of Argentine red wine is usually simpler and more direct, lacking complexity and hierarchy.