Eh, cocoa doesn't have a place among drinks in my opinion. I really have an affinity for Arabic Green tea, it's simply amazing. There are several variations of coffee which make for a splendid morning drink. I want to make a decision but I can't be sure; I'll wing it and say coffee for now.
I'll have coffee in the morning if I'm tired or before the gym. Pretty much anytime before 3-4pm. After 3-4pm I switch to green tea if I need it, as it has less caffeine and I don't need much caffeine later in the day than I may need in the morning.