The Kir Royale and Mimosa both feature champagne as the base spirit, but the Kir Royale uses Crème de Cassis, a blackcurrant liqueur, giving it a different flavor profile. The Mimosa is fruitier with the addition of orange juice.

Both cocktails use champagne, but the Champagne Cocktail is more complex with the addition of bitters and a sugar cube, offering a less fruity, more aromatic experience compared to the Mimosa's fresh orange juice base.

The French 75 uses gin, lemon juice, and simple syrup as a base, topped with champagne, while the Mimosa focuses purely on champagne and orange juice. The French 75 has a more herbal and citrus-forward flavor.

The Bellini and Mimosa are both fruity champagne cocktails, but the Bellini uses peach purée, offering a different fruit flavor, while the Mimosa is citrus-forward with orange juice.