Body proportions can significantly vary among individuals, and there's no single "best" or "ideal" set of proportions for females—or males, for that matter. That said, societal beauty standards often emphasize certain proportions. For example, in many Western societies, an hourglass figure, typically characterized by a bust and hip measurement that's significantly larger than the waist measurement, is often portrayed as desirable.
However, it's essential to remember that these standards are culturally and historically specific and can change over time. It's also worth noting that these societal standards of beauty don't necessarily correlate with health or athletic performance.