I have always wondered and have never been able to figure out the difference....until now. I've decided I am a fan of Sprite more than 7-Up. Why? Because to me, 7-Up tastes like Alka Seltzer. Sprite is sweeter. That's it. It's taken me so many years to figure out which I like more. 

Do you agree? What is the difference between Sprite and 7 Up and which do you prefer?