I work at starbucks so i know ALOT BOUT THIS STUFF. I prefer BOLD types of coffee like Italian Roast. Remeber though the BOLDER the coffee the less caffeine in it. So if you go to starbucks I suggest you get Willow Blend it has the most caffeine. If you want to jump on wall then get Ice Coffee its DOUBLE STRENGTH.
Crazy right but Black tea has ALMOST the amount of caffeine then a cup of coffee. I work around coffee 30 hours a week but I dont even drink its like that and its free for me. LOL. Thanks to this website I can now cut my hours from 40 to 30 a week
Also coffee come from only 3 places thats Latin America, Asia, and Africa.....its best just to put them in light medium and bold or how it is in starbucks blonde medium and dark.
Starbucks have amazing coffee they even grind it for you. If you grind it get TURKISH ITS THE FINEST of all grinds

. As for flavors I personally get toffee nut heh.