The Pepsi Challenge doesn't really work in Australia, because Pepsi here tastes like the HFCS Pepsi in the US (yergh), whereas Coke here is made with sugar and is much nicer.

I never really understood the point of the Pepsi Challenge until I went to the US and had HFCS Coke, which tastes much more like Pepsi. The same is true of Coke Zero, which the ads here loudly proclaim "tastes just like regular Coke". Yeah, regular HFCS Coke, not sugar Coke. Yuck.