While there is not 'one size fits all' in terms of CEO attributes, there are definitely characteristics which can predict the performance of a CEO according to the context in which they operate. 

If you are a CEO, or if you are looking to hire one, the highest predictors lie in sociability, relationship skills, a desire for leadership, intelligence, hard work, curiosity, measured risk taking and competitiveness... among others. Some have an inherent personality which naturally lends itself to these characteristics, some develop strategies which allow them to succeed in these areas despite their natural preferences.  Where would you rate yourself, and where do your personal strategies need further development?