When it comes to finding synonyms for the phrase "six half dozen of other," there are a few options available. One common alternative is "same difference," which conveys the idea that two things may be different in some ways but ultimately have the same outcome or value. Another option is "six of one, half a dozen of the other," which is a slightly different variation of the same phrase. Other phrases that can be used include "two sides of the same coin," "different sides of the same coin," or "comparing apples to oranges." Ultimately, there are many ways to express the idea of two things being essentially equal or interchangeable.