The phrase "better parts" refers to the superior or more valuable aspects of something or someone. Synonyms for this term could include the "best features," "strong suits," or "most desirable qualities." Other options might include "finest attributes," "advantages," or "excellences." In some cases, you might describe these elements of an object or person as its "most positive qualities," "defining characteristics," or "greatest strengths." Depending on the context, you might also use "outstanding attributes," "highest qualities," or "most notable characteristics" as synonyms for the phrase "better parts." Ultimately, the goal is to find language that best captures the essence of what makes something or someone exceptional or noteworthy.