[Manaman]

I think they both have their good and their bad.

I voted for Coke, because I like it quite a bit more and there is an addictive quality to it.

I find Coke gives an odd after taste, rather, more of a coating on your tongue and teeth, while don't feel an after taste from Pepsi. I find part of the addiction for Coke is the after taste goes away if you have more. I also think Coke is smooth texture-wise, while Pepsi has more "bite".

Now between their diet counterparts, I choose Diet Pepsi. Not sure why, just seems to taste better than Diet Coke. And I prefer the Caffeine Free Diet Pepsi over Diet Pepsi for taste, even though it's without caffeine.