The phrase "have the best of" generally means to be in a favorable or advantageous position. There are several synonyms for this phrase that can be used interchangeably, including "come out on top," "have the upper hand," "be ahead," "be superior," "be in control," "prevail," "triumph," "dominate," "outshine," and "excel." Each of these synonyms conveys the idea of being the best or most successful in a situation or competition. Using these synonyms can help add variety and depth to your writing, while still conveying the same meaning as "have the best of".