[brianpan]

Coke outsells Pepsi in most areas of the US. http://en.wikipedia.org/wiki/Pepsi#Rivalry_with_Coca-Cola

I think some people might have a misconception that Pepsi does better due to the very popular Pepsi Challenge marketing campaign. But if you think about it, that campaign is a classic "underdog" campaign. It would be silly for a product that's already winning in the number one position to "challenge" the number two product.

[philwelch]

The "Pepsi Challenge" was the brainchild of none other than erstwhile PepsiCo president John Sculley, who you mind remember for later running Apple into the ground.