Soft drink PEPSI, 1l or Soft drink PEPSI ZERO SUGAR, with sweeteners, 2 l?

Energy 28 kcal 1 kcal
Fat 0 g 0 g
of which saturates 0 g 0 g
Carbohydrate 7 g 0 g
of which sugars 7 g 0 g
Protein 0 g 0 g
Salt 0 g 0 g

Figures from the product labels. Green is the better value.

Soft drink PEPSI, 1l
D
Soft drink PEPSI, 1l
28 kcal Fat 0 g Carbs 7 g Prot. 0 g
Sat. fat 0 g Sugars 7 g
1 l
Soft drink PEPSI ZERO SUGAR, with sweeteners, 2 l
A
Soft drink PEPSI ZERO SUGAR, with sweeteners, 2 l
1 kcal
Sat. fat 0 g Sugars 0 g
2 l