What is the best chatbot now?

As someone interested in the latest advancements in technology, I'm curious to know what the current consensus is on the best chatbot available today. Could you please elaborate on what features or capabilities make this particular chatbot stand out from the rest? I'm particularly interested in its ability to understand natural language, handle complex queries, and provide accurate and relevant responses. Additionally, are there any specific industries or use cases where this chatbot excels? Lastly, how does it compare to other leading chatbots in terms of performance and user satisfaction?