Bakugo gets an F for any cooperative group tasks due to his gigantic ego. He is unpleasant occasionally too, especially to Midoriya. However, Bakugo works hard, strives for perfection, and is committed to his morals, despite villains trying to recruit him to their side. For that, he gets an A in heroism.... Add on- Nitroglycerin is also said to taste sweet so Bakugou smells and tastes like caramel. Deku probably smells like some sort of tacky, 3 in 1, artificial fruit scented All Might shampoo. 