The phrase "better part" is often used in the context of a choice or decision, referring to the more favorable option. Synonyms for this phrase include "majority," "superior portion," "greater share," and "larger half." Other terms that could be used include "predominant part," "principal portion," "dominant segment," or simply "most." Depending on the specific context and tone, alternatives like "finest part," "choice portion," or "optimal share" could also apply. Regardless of the specific terminology used, the implication is always that the "better part" is the more desirable or advantageous option.