Pepsi? Coke? Hell no, i prefer to know what goes down the hatch.
For me a stiff coffee in the morning (_definitely_ with the original caffeine), black no sugar. An occasional 12+ yr single malt in the evening; by preference Aberlour Glenlivet. In between apple juice and/or mineral water - add coffee as needed when caffeine levels go down.
As far as mineral water is concerned I confess to being partial to the blue variety of Saskia Löningen from Lidl - known to many of our EU friends.
In a more serious vein, i have always wondered at the culture in some places of pouring absolute buckets of the sugary stuff into one's face daily. The sizes routinely sold in say a typical US burger joint would keep a caravan of camels going for a week in Sahara. Supersize me indeed.