Berkshire gurus told me they were impressed with Greg Abel's first Q&A as meeting host. Theron Mohamed/Business Insider I flew to Omaha to watch Greg Abel host his first Berkshire Hathaway shareholder meeting. Abel succeeded Warren Buffett as Berkshire's CEO at the start of this year. Berkshire investors, authors, and managers spoke highly of Abel and gave me new insight into him. I recently flew to Omaha to see Warren Buffett's successor, Greg Abel, host his first Berkshire Hathaway shareholder meeting as CEO. I spoke to Berkshire shareholders, authors, and managers about the new boss, who took over from Buffett on January 1. They were overwhelmingly impressed by Abel, and several offered fresh insights into his character and leadership style. Brett Gardner, the author of "Buffett's Early Investments," told me after the Q&A session that Abel visibly grew in confidence as the weekend 's flagship event went on.…