The phrase "six of one and half a dozen the other" is often used to indicate that two options or choices are equally good or bad. However, there are other phrases that can be used as synonyms for this expression. For example, "a wash" or "a tie" implies that there is no clear winner between two options. "It doesn't make much difference" or "there is not much to choose between them" suggest that the differences between two options are minimal. Lastly, "a toss-up" or "a draw" convey the idea that the outcome is uncertain or likely to be even. All of these phrases can be used interchangeably with "six of one and half a dozen the other" to express a similar idea.