Pepsi all the way. For the fact that Coca Cola gives me a headache in all its guises from diet to lime.
Just to make some laugh about dieting choices.
Regular - More sugar which could lead to bad teeth, gingervitus, diabetes in adulthood and obesity.
Diet - Artificial sweetners reduce actual sugar content while keeping the taste (yeh right) which could cancer of anything the liquid comes in contact with (which is almost everything).
And for those who think thats odd the main reason for worry is that the link between the sugar has been proven to suspect ground within a scientific (non-advertisment) judgement however, the cancer related part was proven only months after being release and has been re-tested over the years to check and its potency is still present. The mathematical probability of any of the problems is still massively insignificant but if you were to plump for the most likely i bet it would not be the cancer but it is more than 4 times as likely to occur than the others in the same doses.
Go on scare you missus