What is better than KuCoin?

Could you please elaborate on what might be superior to KuCoin in the realm of cryptocurrency exchanges? I'm curious to know if there are any platforms that offer more diverse trading pairs, lower transaction fees, or a more user-friendly interface. Additionally, I'm interested in learning about any exchanges that might provide superior security measures or customer service support. Could you provide some examples and explain what makes them stand out from KuCoin?