"Six and half dozen of other" is a phrase that means two things are essentially the same or there is no significant difference between them. There are several alternative expressions that can be used to convey this idea, such as "six of one, half a dozen of the other," "same difference," or "tomato, tomahto." These phrases are often used in casual conversation to suggest that it doesn't really matter which option is chosen, as the outcome will likely be the same. Other similar expressions include "you can't tell the difference" or "it's all the same to me," which also convey a sense of indifference or lack of preference.