I currently drink "Regal Cola" also known as "ALDI Cola" as it is specially made for ALDI stores in Australia. Ingredients:

• Carbonated Water
• Sugar
• Colour (150d)
• Acidity Regulator (338)
• Flavour (Contains Kola Extract)
• Caffeine.

It tastes more like Coca Cola than it does like Pepsi Cola. It has this crisp sharp after-taste that I've not found in any other cola varieties. I only drink it in cans and the price is much less than Coca Cola. Cans are 375 mL each and for 24 cans you'll pay around $8 Australian. In comparison, 18 cans of Coca Cola of the same 375 mL quantity will cost you around $18 Australian, although I have seen specials where the price per can has dropped to 50 cents, but never lower.

It's also "Made in Australia" so I guess I'm supporting the local economy or something.