While all the killers have their own unique set of abilities and strengths, they also have weaknesses. For example, The Doctor can teleport but he is vulnerable to fire. The Hillbilly has a chainsaw for a hand but he is slow and easily tracked. It's important to know what these weaknesses are so that you can use them to your advantage when playing against the killer. The bottom line is that all the killers are dangerous and you need to be aware of their abilities if you want to survive. But with a little bit of knowledge and some practice, you can take them down.