The answer to 'which is worse cockroach or' is that cockroaches are generally considered worse pests than many other insects. Cockroaches are highly adaptable, can spread diseases, and are difficult to eliminate once they infest a home. They can also cause allergic reactions and contaminate food.
Cockroaches are known to carry and spread a variety of bacteria, viruses, parasites, and fungi that can make people sick. They can trigger asthma attacks and other respiratory issues, especially in children. Cockroaches are also hard to get rid of due to their ability to hide in small cracks and crevices and their high reproductive rate.