It sounds like you're equating "aggressive" with "sweet".

Coffee has a very strong taste (even without sugar). Stronger than anything on the list. I'd wager that the reason some people add a lot of sugar is to make up for that strong taste.

5 hour energy drinks have almost no sugar. Much milder taste than coffee.

> Meanwhile in Asia beans are considered sweet bc their food isn't overloaded with sugar.

Red bean paste?