Both the killer whale and the sperm whale belong to the whale. Which of the two is better depends on the specific situation. In terms of size, sperm whales are much larger than killer whales, and some sperm whales can be as large as two killer whales. Moreover, from the point of view of tooth structure, sperm whale teeth are relatively strong. However, although they are larger than sperm whales in terms of size and strength of teeth, their bodies are heavier and less flexible, and their bite force is relatively poor. More importantly, killer whales are highly intelligent, they often appear in groups, and their ability to work in teams is particularly strong.
Combine the advantages and disadvantages of both. If a single sperm whale is stronger than a single killer whale, then the sperm whale is stronger. However, killer whales are used to acting in groups, while sperm whales are often alone. So when a sperm whale meets a pod of killer whales, it's almost impossible to beat them.
Killer whales and humpback whales belong to whales. In terms of size, humpbacks are much larger than orcas; However, although the size of killer whales is small, their teamwork ability is strong, and their IQ is relatively high. If a humpback whale is compared with a killer whale, then humpback whales are more powerful, because humpbacks often interfere with killer whale hunting, and sometimes even save killer whale prey. However, if a group of killer whales, then it may be more powerful than humpback whales. But even a group of orcas rarely dares to attack a large humpback whale, and may choose to attack a juvenile humpback whale.