Which hexagram shall prevail? Some say the first divination, while others say the best divination. Please be more specific, thank you?

The three hexagrams all represent the development process of the event and are related to your thoughts at that time. If the thoughts are consistent, the result of each hexagram is roughly reflected in the sequence of events, that is, the focus of each hexagram only represents a certain stage of events. If what you think is different, the divination image reflects the difference image you ask. If you shake the hexagrams too many times, the following hexagrams may reflect a certain point in the course of the event, or related people's affairs, rather than focusing on the questions you ask.