Soft drink PEPSI ZERO SUGAR, with sweeteners, 2 l or Soft drink FANTA LEMON ZERO, 500 ml?

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

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

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
Soft drink FANTA LEMON ZERO, 500 ml
C
Soft drink FANTA LEMON ZERO, 500 ml
1 kcal
Sat. fat 0 g Sugars 0 g
500 ml